TIDMGFM

RNS Number : 4548Y

Griffin Mining Ld

13 May 2021

GRIFFIN MINING LIMITED

Royal Trust House, 54 Jermyn Street, London SW1Y 6LX, United Kingdom

Telephone: + 44 (0)20 7629 7772 Facsimile: + 44 (0)20 7629 7773

E mail: griffin@griffinmining.com

13(th) May 2021

2020 Results

Preliminary Announcement

Griffin Mining Limited ("Griffin" or the "Company") has today published its annual report and financial statements for the year ended 31 December 2020 which are available on the Company's web site wwww.griffinmining.com.

In 2020, the Company and its subsidiaries (together the "Group") recorded;

   --    Revenues of $75,403,000 (2019: $82,267,000); 
   --    Operating profit of $15,148,000 (2019: $14,225,000); 
   --    Profit before tax of $14,515,000 (2019: $11,712,000); 
   --    Profit after tax of $8,910,000 (2019: $6,084,000); and 
   --    Basic earnings per share of 5.16 cents per share (2019: 3.52 cents). 

Despite interruptions to operations in the first quarter of 2020 with restrictions imposed by the Chinese authorities to contain the Covid-19 pandemic, the Group recorded a 6.5% increase in operating profits on that recorded in 2019, primarily as a result of higher zinc metal prices received and reduced costs.

Turnover of $75,403,000 was down $6,864,000 (8.3%) on that achieved in 2019 of $82,267,000. This reflects zinc in concentrate sales down $2,532,000 (4.6%) with 5,535 tonnes (14.6%) less zinc in concentrate sold at average prices of $174 per tonne (11.8%) higher than in 2019, as the Group benefited from rising market prices and falling smelter treatment charges. Lead and precious metal in concentrate sales were down $3,851,000 (12.9%) on 2019 with 6,494 ozs (36.7%) less gold in concentrate sold at average prices of $441 per oz (33.4%) higher than 2019 and 41,337 ozs (12.4%) less silver in concentrate sold at average prices of $3.9 per oz (28.3%) higher than 2019.

In 2020, metal in concentrate sales were:

   --    Zinc 32,276 tonnes (2019: 37,811 tonnes); 
   --    Gold 11,218 ozs (2019: 17,712 ozs); 
   --    Silver 291,756 ozs (2019: 333,093 ozs); and 
   --    Lead 1,425 tonnes (2019: 1,221 tonnes). 

Average prices achieved in 2020 were:

   --    Zinc metal per tonne of $1,645 (2019: $1,471); 
   --    Gold metal per oz of $1,759 (2019: $1,318); 
   --    Silver metal per oz of $17.70 (2019: $13.80); and 
   --    Lead metal per tonne of $1,339 (2019: $1,575). 

Cost of sales of $42,737,000 in 2020 were down 12.1% on that incurred in 2019 of $48,609,000. This reduction in the main reflects less ore mined, hauled and processed with operations impacted by restrictions to contain the Covid-19 pandemic in the first quarter. Additional cost savings were achieved in mining and haulage thereby reducing unit costs per tonne of ore. Despite the reduction in tonnes of ore mined and processed, non-cash depreciation charges rose with additional capital costs.

Administration expenses fell $1,915,000 (9.9%) from $19,433,000 in 2019 to $17,518,000 in 2020. This reduction reflects efforts to contain costs across the Group during the Covid-19 pandemic, despite additional work on the application for a mining licence at Zone II and Green Mine certification.

Foreign exchange gains of $22,000 (2019: losses $93,000) were recorded in 2020, mainly on a strengthening of the Renminbi.

Interest of $108,000 (2019: $171,000) was received on bank deposits in 2020 whilst interest of $111,000 (2019: $51,000) was paid on short term bank loans. Finance interest on the lease of the dry tailings facility at Caijiaying and the London office totalling $171,000 (2019: $326,000) was incurred in 2020. Deemed interest on discounted rehabilitation provisions of $77,000 (2019: $Nil) was charged in 2020.

Losses on the disposal of $1,129,000 (2019: $305,000) were recorded with equipment being replaced to meet higher Chinese environmental standards.

Income taxes of $5,605,000 (2019: $5,628,000) have been charged in 2020. This includes a deferred taxation charge of $424,000 (2019: $380,000), and PRC withholding taxes on dividend distributions and fees of $232,000 ($50,000).

Basic earnings per share in 2020 was 5.16 cents (2019: 3.52 cents) and diluted earnings per share was 4.88 cents (2019: 3.24 cents).

Cash generated from operations of $24,398,000 (2019: $21,639,000) has been used in further developing the mine and facilities.

Attributable net assets per share at 31st December 2020 was $1.35 (2019: $1.24).

Chairman's Statement:

I believe I can safely say, this was the year when Griffin fulfilled all of its outstanding promises to its past, current and future shareholders by delivering the confirmed regulatory and operational requirements to propel the Company forward into the foreseeable future. The list of achievements is extraordinary.

Firstly, the granting by the Chinese Ministry of Land and Natural Resources (the "MNR") of new the Mining Licence covering both Zone II and Zone III in conjunction with the issuance of the 3(rd) Stage Zone III Project Final Acceptance Permit (the "PFA") was a momentous achievement in terms of time, complexity and operational importance. It will increase the annual ore mined from Zone III from 820,000 tonnes in 2020 to 1.1 million tonnes in 2021, but with the increased ore accessed from Zone II, this should increase to over 1.5 million tonnes per annum in 2022, possibly increasing further as these zones continue to be developed. It catapults Griffin into the ranks of one of the largest zinc producers in China, which remains the largest consuming base and ferrous metals market in the world.

Secondly, the announcement of the new Global Mineral Resource estimate reported in accordance with the JORC Code (2012) for the Caijiaying Mine of an amazing 101.5 million tonnes at 3.9% Zinc, 0.6% Lead, 27.0 g/t Silver and 0.5 g/t Gold, resulting in total contained metal of approximately 4.0 million tonnes of Zinc, 0.6 million tonnes of Lead, 88.8 million ounces of Silver and 1.59 million ounces of Gold totalling $17.7 billion of metal in situ, a 50% increase in the known mineral resource.

Thirdly, obtaining Green Mine accreditation by the MNR having passed the national level green mine assessment. Failing to obtain certification would have meant closure of the Caijiying Mine. So not only has the smooth continuation of operations at the Caijiaying Mine been ensured, but it continues also to show the Company's commitment to the environment, the local Chinese community and to the greater People's Republic of China. Green Mine approval comes after the Company's past environmental best practices were recognised by the Chinese government with the Environmental Award and the Mine Development Outstanding Achievement Award at successive China Mining Conferences.

Fourthly, yet another outstanding operational result considering operations were either suspended or severely curtailed in the first quarter of 2020 due to the Covid-19 pandemic, with access being denied for the whole of 2020 to the deeper stopes in Zone III awaiting PFA approval and the wait for the Zone II new Mining Licence. Nevertheless, operating profit, profit before tax, profit after tax and earnings per share all increased. Griffin now has the extraordinary claim that it has been profitable on an operational basis, in all the turmoils of the commodities markets, for the full 15 years it has been in operation and has only made a loss, on a net profit basis, in one of those years.

Fifthly, and although I place little faith in the share price as an indicator of value, in the last 12 months the Company's share price has increased approximately 200%; 65.1% against the FTSE Fledgling Index, 64% against the FTSE All AIM Index and 60% against the FTSE Small Mining Cap Index. A remarkable performance.

As the Company has grown and generated cash, inevitably various opinions have been voiced in relation to the share price, share buybacks, dividends and even the realisation of the value of the Company. It is enough to say that your board continues to evaluate all these options on an ongoing and meticulous basis and remains committed to ensuring that the views of all the shareholders are considered and, where possible, acted upon, a course of action that Solomon himself, with all his wisdom, would find difficult.

The Company continues to evaluate opportunities not only through acquisition or organic expansion but also through continuing exploration at the Caijiaying Mine and the surrounding region and through exploration outside of Hebei Province wherever host rocks mimic the Caijiaying Mine area and provide the potential for significant exploration success.

Penultimately, I would like to thank our Chinese and ex pat employees, contractors, consultants, subsidiary directors, partners, spouses and children. Life has taught me that people make things happen and, in the extraordinary Covid-19 year of 2020, these very people went above and beyond the call of duty to travel and work in extremely difficult circumstances, often leaving homes and loved ones, to put the Company's interests first. We couldn't be more grateful.

Lastly, I would like to thank on behalf of the shareholders, those few to whom we owe so much and of whom Michael Jordan said in The Last Dance "Have some respect for the people who laid the foundations to make this a profitable organization." I call them the founders of the Company. Those who believed when no-one believed. Those who flew standby (when that existed) and sat at the airport for a week hoping to catch a flight home. Those few who went to Caijiaying when it was a 12-hour drive from Beijing on a single lane gravel road overrun with over-laden coal trucks and stayed at what can only loosely be called accommodation. Those few who took no salaries or compensation and stayed when the Company had almost run out of funds. Those few who worked out of a terrible, serviced office the size of a cupboard. Those few include Roger Goodwin, Dal Brynelsen, the deceased Bill Mulligan and the recently departed Rupert Crowe.

It would be absolutely wrong of me to not mention Rupert, even though I have said much before. His wisdom, expertise and counsel are missed every day by all of us at Griffin. Without him, the Caijiaying Mine would have remained a valley, topped by Mongolian sands, next to a little village in northern China. An extraordinary, brilliant geologist, the Father of Caijiaying and, far more importantly, a gracious, gentle, considered, dedicated, intelligent human being it has been my absolute privilege to know and to have spent a large portion of my working life.

With the past behind us, I look forward to the next year of this incredible journey.

Further information

Griffin Mining Limited Telephone: +44 (0)20 76290 7772

   Mladen Ninkov  -   Chairman 

Roger Goodwin - Finance Director

 
 Panmure Gordon (UK) Limited   Telephone: +44 (0)20 7886 2500 
         John Prior 
          Joanna Langley 
 Berenberg                     Telephone: +44 (0)20 3207 7800 
       Matthew Armitt 
        Jennifer Wyllie 
        Deltir Elezi 
 Blytheweigh                    Telephone: +44(0)20 7138 3205 
       Tim Blythe 
 Swiss Resource Capital AG      Telephone: + 41(0)71 354 8501 
       Jochen Staiger 
 

Griffin Mining Limited's shares are quoted on the Alternative Investment Market (AIM) of the London Stock Exchange (symbol GFM).

The Company's news releases are available on the Company's web site: www.griffinmining.com

The information contained within this announcement is deemed to constitute inside information as stipulated under the Market Abuse Regulations (EU) No.596/2014.

Griffin Mining Limited

Summarised Consolidated Income Statement

For the year ended 31 December 2020

(expressed in thousands US dollars)

 
                                                2020      2019 
                                             Audited   Audited 
                                                $000      $000 
 
Revenue                                       75,403    82,267 
 
Cost of sales                               (42,737)  (48,609) 
 
 
Gross profit                                  32,666    33,658 
 
Administration expenses                     (17,518)  (19,433) 
 
 
Profit from operations                        15,148    14,225 
 
Losses on disposal of plant and equipment    (1,129)     (305) 
Provisions against intangible assets            (10)   (1,985) 
Foreign exchange gains / (losses)                 22      (93) 
Finance income                                   108       171 
Finance costs                                  (359)     (377) 
Other income                                     735        76 
 
 
Profit before tax                             14,515    11,712 
 
Income tax expense                           (5,605)   (5,628) 
 
 
Profit for the year                            8,910     6,084 
                                            ========  ======== 
 
 
Basic earnings per share (cents)                5.16      3.52 
                                            ========  ======== 
 
Diluted earnings per share (cents)              4.88      3.24 
                                            ========  ======== 
 

Griffin Mining Limited

Summarised Consolidated Statement of Comprehensive Income

For the year ended 31 December 2020

(expressed in thousands US dollars)

 
                                                    2020       2019 
                                                 Audited    Audited 
                                                    $000       $000 
 
Profit for the year                                8,910      6,084 
                                                --------  --------- 
 
Other comprehensive income / (expenses) 
 that will be reclassified to profit or loss 
 
Exchange differences on translating foreign 
 operations                                        9,662    (2,324) 
 
 
  Other comprehensive income / (expenses) 
  for the year, net of tax                         9,662    (2,324) 
                                                --------  --------- 
 
 
  Total comprehensive income for the year         18,572      3,760 
                                                ========  ========= 
 

Griffin Mining Limited

Summarised Consolidated Statement of Financial Position

As at 31 December 2020

(expressed in thousands US dollars)

 
                                                          2020      2019 
                                                       Audited   Audited 
                                                          $000      $000 
ASSETS 
Non-current assets 
Property, plant and equipment                          266,709   228,287 
Intangible assets - exploration interests                  325       322 
                                                      --------  -------- 
                                                       267,034   228,609 
                                                      --------  -------- 
Current assets 
Inventories                                              5,333     3,839 
Receivables and other current assets                     6,675     1,861 
Cash and cash equivalents                               16,435    19,885 
                                                      --------  -------- 
                                                        28,443    25,585 
                                                      --------  -------- 
 
Total assets                                           295,477   254,194 
                                                      ========  ======== 
 
EQUITY AND LIABILITIES 
Equity attributable to equity holders of the parent 
Share capital                                            1,728     1,728 
Share premium                                           68,470    68,455 
Contributing surplus                                     3,690     3,690 
Share based payments                                     2,072     2,072 
Shares held in treasury                                  (917)     (917) 
Chinese statutory re-investment reserve                  2,830     2,500 
Other reserve on acquisition of non controlling 
 interests                                            (29,346)  (29,346) 
Foreign exchange reserve                                11,365     1,703 
Profit and loss reserve                                173,814   165,059 
                                                      --------  -------- 
Total equity attributable to equity holders of 
 the parent                                            233,706   214,944 
                                                      --------  -------- 
 
Non-current liabilities 
Other Payables                                          13,487         - 
Long-term provisions                                     2,200     2,150 
Deferred taxation                                        3,359     2,731 
Finance leases                                               -       479 
                                                      --------  -------- 
                                                        19,046     5,360 
                                                      --------  -------- 
Current liabilities 
Trade and other payables                                42,342    31,769 
Finance leases                                             383     2,121 
Total current liabilities                               42,725    33,890 
                                                      --------  -------- 
 
Total equities and liabilities                         295,477   254,194 
                                                      ========  ======== 
 
Attributable net asset value per share to equity 
 holders of parent                                        1.35      1.24 
 

Griffin Mining Limited

Summarised Consolidated Statement of Changes in Equity.

For the year ended 31 December 2020

(expressed in thousands US dollars)

 
                  Share    Share  Contributing     Share    Shares        Chinese            Other   Foreign   Profit         Total 
                Capital  Premium       surplus     Based   held in      statutory       reserve on  Exchange      and  attributable 
                                                                    re-investment                                loss            to 
                                                Payments  Treasury        Reserve      acquisition   Reserve  reserve        equity 
                                                                                                of                          holders 
                                                                                   non-controlling                        of parent 
                                                                                         interests 
                   $000     $000          $000      $000      $000           $000             $000      $000     $000          $000 
 
  At 1(st) 
  January 2019    1,727   68,442         3,690     2,072     (917)          2,386         (29,346)     4,027  159,161       211,242 
                -------  -------  ------------  --------  --------  -------------  ---------------  --------  -------  ------------ 
 
  Regulatory 
  transfer for 
  future 
  investment          -        -             -         -         -            153                               (153)             - 
Issue of 
 shares on 
 exercise 
 of options           1       13             -         -         -              -                -         -        -            14 
Transaction 
 with owners          1       13             -         -         -            153                -         -    (153)            14 
                -------  -------  ------------  --------  --------  -------------  ---------------  --------  -------  ------------ 
 
  Profit for 
  the year            -        -             -         -         -              -                -         -    6,084         6,084 
Adjustment for 
 adoption of 
 IFRS 16 
 leases               -        -             -         -         -              -                -         -     (33)          (33) 
Other 
comprehensive 
income 
: 
Exchange 
 differences 
 on 
 translating 
 foreign 
 operations           -        -             -         -         -           (39)                -   (2,324)        -       (2,363) 
                -------  -------  ------------  --------  --------  -------------  ---------------  --------  -------  ------------ 
Total 
 comprehensive 
 income               -        -             -         -         -           (39)                -   (2,324)    6,051         3,688 
                -------  -------  ------------  --------  --------  -------------  ---------------  --------  -------  ------------ 
 
  At 31st 
  December 
  2019            1,728   68,455         3,690     2,072     (917)          2,500         (29,346)     1,703  165,059       214,944 
                =======  =======  ============  ========  ========  =============  ===============  ========  =======  ============ 
 
  Regulatory 
  transfer for 
  future 
  investment          -        -             -         -         -            155                -         -    (155)             - 
Issue of 
 shares on 
 exercise 
 of options           -       15             -         -         -              -                -         -        -            15 
Transaction 
 with owners          -       15             -         -         -            155                -         -    (155)            15 
                -------  -------  ------------  --------  --------  -------------  ---------------  --------  -------  ------------ 
 
  Profit for 
  the year            -        -             -         -         -              -                -         -    8,910         8,910 
Other 
comprehensive 
income: 
Exchange 
 differences 
 on 
 translating 
 foreign 
 operations           -        -             -         -         -            175                -     9,662                  9,837 
                -------  -------  ------------  --------  --------  -------------  ---------------  --------  -------  ------------ 
Total 
 comprehensive 
 income               -        -             -         -         -            175                -     9,662    8,910        18,747 
                -------  -------  ------------  --------  --------  -------------  ---------------  --------  -------  ------------ 
 
  At 31st 
  December 
  2020            1,728   68,470         3,690     2,072     (917)          2,830         (29,346)    11,365  173,814       233,706 
                =======  =======  ============  ========  ========  =============  ===============  ========  =======  ============ 
 

Griffin Mining Limited

Summarised Consolidated Cash Flow Statement

For the year ended 31 December 2020

(expressed in thousands US dollars)

 
                                                         2020      2019 
                                                      Audited   Audited 
                                                         $000      $000 
 
Net cash flows from operating activities 
Profit before taxation                                 14,515    11,712 
Foreign exchange (gains) / losses                        (22)        93 
Finance income                                          (108)     (171) 
Finance costs                                             359       377 
Depreciation, depletion and amortisation               12,801    12,343 
Provisions against intangible assets                       10     1,985 
Losses on disposal of equipment                         1,129       305 
(Increase) / decrease in inventories                  (1,494)     1,112 
(Increase) / decrease in receivables and other 
 current assets                                       (4,814)       959 
Increase in trade and other payables                    5,666     4,016 
Taxation paid                                         (3,644)  (11,092) 
                                                     --------  -------- 
Net cash inflow from operating activities              24,398    21,639 
                                                     --------  -------- 
 
Cash flows from investing activities 
Interest received                                         108       171 
(Costs) / proceeds on disposal of equipment              (44)         1 
Payments to acquire - mineral interests              (18,691)  (18,883) 
Payments to acquire - plant and equipment             (5,684)   (8,193) 
Payments to acquire office, office furniture & 
 equipment                                                (5)      (69) 
Payments to acquire intangible fixed assets - 
 exploration interests                                   (11)     (308) 
                                                     --------  -------- 
Net cash outflow from investing activities           (24,327)  (27,281) 
                                                     --------  -------- 
 
Cash flows from financing activities 
Issue of ordinary shares on exercise of options            15        14 
Interest paid                                           (112)      (52) 
Finance lease advance                                       -        65 
Finance lease repayments                              (2,469)   (2,762) 
Net cash outflow from financing activities            (2,566)   (2,735) 
                                                     --------  -------- 
 
(Decrease) / increase in cash and cash equivalents    (2,495)   (8,377) 
 
Cash and cash equivalents at the beginning of 
 the year                                              19,885    28,452 
Effects of exchange rates                               (955)     (190) 
                                                     --------  -------- 
Cash and cash equivalents at the end of the year       16,435    19,885 
                                                     --------  -------- 
 
Cash and cash equivalents comprise bank deposits. 
Bank deposits                                          16,435    19,885 
                                                     ========  ======== 
 

Included within net cash flows of $2,495,000 (2019 $8,377,000) are foreign exchange losses of $22,000 (2019: gains $93,000) which have been treated as realised.

Notes:

This statement has been prepared using accounting policies and presentation consistent with those applied in the preparation of the statutory financial statements of the Company.

The summary financial statements set out above do not constitute statutory financial statements as defined by Section 84 of the Bermuda Companies Act 1981 or Section 435 of the UK Companies Act 2006. The Summarised Consolidated Statement of Financial Position at 31 December 2020 and the Summarised Consolidated Income Statement, Summarised Consolidated Statement of Comprehensive Income, Summarised Consolidated Statement of Changes in Equity and the Summarised Consolidated Cash Flow statement for the year then ended have been extracted from the Group's audited 2020 statutory financial statements.

The annual report and accounts for 2020 are being sent by post to all registered shareholders. Additional copies of the annual report and accounts are available from the Company's London office, 8(th) Floor, 54 Jermyn Street, London, SW1Y 6LX and are available on Griffin Mining Ltd's web site www.griffinmining.com

The Group has one business segment, the Caijiaying zinc gold mine in the People's Republic of China. All revenues and costs of sales in 2020 and 2019 were derived from the Caijiaying zinc gold mine.

 
                                                              2020      2019 
                                                              $000      $000 
 REVENUES 
 China                                                      75,403    82,267 
                                                          ========  ======== 
 
 Zinc concentrate sales                                     53,095    55,627 
 Lead and precious metals concentrate sales                 25,999    29,850 
 Royalties and resource taxes                              (3,691)   (3,210) 
                                                          --------  -------- 
                                                            75,403    82,267 
                                                          ========  ======== 
 
 COST OF SALES: CHINA 
 Mining costs                                               16,056    17,652 
 Haulage costs                                               7,282     8,277 
 Processing costs                                            8,868    10,019 
 Depreciation (excluding depreciation in administration 
  costs)                                                    11,780    11,462 
 Stock movements                                           (1,249)     1,199 
                                                          --------  -------- 
                                                            42,737    48,609 
                                                          ========  ======== 
 
 ADMINISTRATION EXPENSES 
 China                                                      12,939    14,253 
 Australia                                                     312       414 
 UK / Bermuda                                                4,267     4,766 
                                                          --------  -------- 
                                                            17,518    19,433 
                                                          ========  ======== 
 

All revenues, cost of sales and operating expenses charged to profit relate to continuing operations.

Notes (continued):

 
 TOTAL ASSETS              2020      2019 
                           $000      $000 
 China                  290,147   248,119 
 Australia                  967       686 
 UK / Bermuda             4,363     5,389 
                       --------  -------- 
                        295,477   254,194 
                       ========  ======== 
 
 CAPITAL EXPITURE       2020      2019 
                           $000      $000 
 China                   24,375    27,076 
 Australia                    -        65 
 UK / Bermuda                 5         4 
                       --------  -------- 
                         24,380    27,145 
                       ========  ======== 
 
 
 FINANCE INCOME               2020   2019 
                              $000   $000 
 Interest on bank deposits     108    171 
                             =====  ===== 
 
 
 FINANCE COSTS                                2020   2019 
                                              $000   $000 
 Interest payable on short term bank loans     111     51 
 Interest on rehabilitation provisions          77      - 
 Finance lease interest                        171    326 
                                             -----  ----- 
                                               359    377 
                                             =====  ===== 
 
 
 OTHER INCOME                    2020   2019 
                                 $000   $000 
 Scrap and sundry other sales     735     76 
                                =====  ===== 
 

Income Tax Expense

 
                                                               2020     2019 
                                                               $000     $000 
 Profit for the year before tax                              14,515   11,712 
                                                            -------  ------- 
 
 Expected tax expense at a standard rate of PRC income 
  tax of 25% (2018 25%)                                       3,629    2.929 
 Adjustment for tax exempt items : 
 - Income and expenses outside the PRC not subject 
  to tax                                                        567      746 
 
 Adjustments for short term timing differences : 
 - In respect of accounting differences                       (298)    (234) 
 
 Adjustments for permanent timing differences other           1,051    1,757 
 
 Withholding tax on intercompany dividends and charges          232       50 
 
 Current taxation expense                                     5,181    5,248 
                                                            -------  ------- 
 
 Deferred taxation expense 
 Correction of provision brought forward                          -       18 
 Origination and reversal of temporary timing differences       424      362 
                                                                424      380 
                                                            -------  ------- 
 
 Total tax expense                                            5,605    5,628 
                                                            =======  ======= 
 

Notes (continued):

INCOME TAX EXPENSE (continued)

The parent company is not resident in the United Kingdom for taxation purposes. Hebei Hua-Ao paid income tax in the PRC at a rate of 25% in 2020 (25% in 2019) based upon the profits calculated under Chinese generally accepted accounting principles (Chinese "GAAP").

EARNINGS PER SHARE

Reconciliation of the earnings and weighted average number of shares used in the calculations are set out below:

 
                                            2020                                     2019 
                            Earnings        Weighted    Per share    Earnings        Weighted    Per share 
                                             Average       amount                     Average       amount 
                                $000          number      (cents)                      number      (cents) 
                                           of shares                     $000       of shares 
 Basic earnings per 
  share 
 Earnings attributable 
  to ordinary 
  shareholders                 8,910     172,788,420         5.16       6,084     172,748,831         3.52 
 Dilutive effect of 
  securities 
 Options                           -       9,861,227       (0.28)           -      15,107,500       (0.28) 
                           ---------   -------------   ----------   ---------   -------------   ---------- 
 Diluted earnings 
  per share                    8,910     182,649,647         4.88       6,084     187,856,331         3.24 
                           =========   =============   ==========   =========   =============   ========== 
 
 

The calculation of the basic earnings per share is based on the earnings attributable to ordinary shareholders divided by the weighted average number of shares in issue during the year. The calculation of diluted earnings per share is based on the basic earnings per share on the assumed conversion of all dilutive options and other dilutive potential ordinary shares.

Notes (continued):

Property, plant and equipment

 
                                      Mineral          Mill and   Offices furniture       Total 
                                    Interests            mobile         & equipment 
                                                 mine equipment 
 At 1 January 2019                    167,338            45,747                  55     213,140 
 Foreign exchange adjustments         (1,611)             (786)                   -     (2,397) 
 Additions during the year             18,883             8,193                  69      27,145 
 Change in estimate of mine 
  closure costs                         (115)                 -                   -       (115) 
 Adjustment for adoption of 
  IFRS16 leases                             -                 -                 370         370 
 Adjustment for change in lease 
  accounting estimate.                      -             2,792                   -       2,792 
 Disposals                                  -             (305)                   -       (305) 
 Depreciation charge for the 
  year                                (6,912)           (5,268)               (163)    (12,343) 
                                  -----------  ----------------  ------------------  ---------- 
 
   At 1 January 2020                  177,583            50,373                 331     228,287 
 Foreign exchange adjustments           8,292             3,408                   5      11,705 
 Additions during the year             18,691             5,684                   5      24,380 
 Provision for licence transfer 
  fees                                 16,338                 -                   -      16,338 
 Change in estimate of mine 
  closure costs                         (115)                 -                   -       (115) 
 Transfer of rehabilitation 
  provision                               697             (697)                   -           - 
 Disposals                                  -           (1,085)                   -     (1,085) 
 Depreciation charge for the 
  year                                (6,542)           (6,084)               (175)    (12,801) 
                                  -----------  ----------------  ------------------  ---------- 
 
   At 31 December 2020                214,944            51,599                 166     266,709 
                                  ===========  ================  ==================  ========== 
 
 At 31 December 2018 
 Cost                                 205,840            72,028                 134     278,002 
 Accumulated depreciation            (38,502)          (26,281)                (79)    (64,862) 
                                  -----------  ----------------  ------------------  ---------- 
 Net carrying amount                  167,338            45,747                  55     213,140 
                                  ===========  ================  ==================  ========== 
 
 At 31 December 2019 
 Cost                                 222,589            80,935                 573     304,097 
 Accumulated depreciation            (45,006)          (30,562)               (242)    (75,810) 
                                  -----------  ----------------  ------------------  ---------- 
 Net carrying amount                  177,583            50,373                 331     228,287 
                                  ===========  ================  ==================  ========== 
 
 At 31 December 2020 
 Cost                                 267,763            90,173                 583     358,519 
 Accumulated depreciation            (52,819)          (38,574)               (417)    (91,810) 
                                  -----------  ----------------  ------------------  ---------- 
 Net carrying amount                  214,944            51,599                 166     266,709 
                                  ===========  ================  ==================  ========== 
 

Mineral interests comprise the Group's interest in the Caijiaying ore bodies including costs on acquisition, plus subsequent expenditure on licences, concessions, exploration, appraisal and construction of the Caijiaying mine including expenditure for the initial establishment of access to mineral reserves, commissioning expenditure, and direct overhead expenses prior to commencement of commercial production and together with the end of life restoration costs.

Mill and mobile mine equipment include $3,872,000 (2019: $1,997,000) of assets under construction yet to be depreciated.

Notes (continued):

Property, plant and equipment (continued)

The offices, furniture and equipment disclosed above relates solely to the fixed assets, including leased offices, of Griffin Mining (UK Services) Limited and China Zinc Pty Limited.

During 2013 plant and equipment with a deemed value of $11,381,000, revalued in 2019 to $14,150,000, were acquired under a finance lease, upon which depreciation of $6,712,000 (2019: $5,123,000) has been provided. At 31 December 2019 the net carrying amount of this equipment was $8,417,000 (2019: $9,027,000). In 2019 the London office lease was capitalised to comply with IFRS16 with a deemed value of $371,000 upon which depreciation of $248,000 has been provided. At 31 December 2020 the net carrying amount of this office was $124,000 (2019:$247,000).

The Group assesses the carrying value of the mineral interests, mill and mobile mine equipment at least annually, and more frequently in the event of any indications of impairment, by reference to discounted cash flow forecasts of future revenue and expenditure for each business segment. These forecasts are based upon both past and expected future performance, available resources and expectations for future markets. Management determined that there were no impairment indicators at 31 December 2020. However, as best practice management have updated the impairment model.

In determining any indications of impairment in the carrying value of the Caijiaying Mine the directors have reassessed the net carrying value of capitalised costs at 31 December 2020 by reference to the estimated mineral resources at Caijiaying that may be extracted by 2056 and 2037 when the current business licence of Hebei Hua Ao expires. However, it is expected that Hebei Hua Ao will be converted to an equity joint venture company with an indefinite life before then. Accordingly, a Life of Mine plan ("LOM") has been prepared by the Company that indicates the continued extraction of ore until 2056. In estimating the discounted future cash flows from the continuing operations at the Caijiaying mine the following principal assumptions have been made:

-- Future market prices for zinc of $2,500 per tonne, gold of $1,800 per troy ounce and silver of $20 per troy ounce;

   --      Zinc treatment charges of 30% of market prices; 

-- Extraction of measured and indicated resources of 25.5 million tonnes to 2037 when the current business licence of Hebei Hua Ao expires, with ore mined and processed rising to a maximum rate of 1.6 million tonnes of ore per annum;

-- Operating costs, recoveries and payables based upon past performance and that budgeted for 2021;

-- Capital costs based upon that initially scheduled with sustaining capital based on future scheduling:

   --      Discount rate of 10%; and 
   --      Continued maintenance and grant of applicable licences and permits. 

Notes (continued):

Intangible Assets

China - mineral exploration interests

 
                                        $000 
 At 1 January 2019                     2,016 
 Foreign exchange adjustments           (17) 
 Additions during the year               308 
 Impairment during the year          (1,985) 
 At 1 January 2020                       322 
 Foreign exchange adjustments              2 
 Additions during the year                11 
 Impairment during the year             (10) 
 At 31 December 2020                     325 
                                    ======== 
 

Intangible assets represent cost on acquisition, plus subsequent expenditure on licences, concessions, exploration, appraisal and development work in respect to regional exploration in China. Where expenditure on an area of interest is determined as unsuccessful such expenditure is written off to profit or loss. The recoverability of these assets depends, initially, on successful appraisal activities, details of which are given in the report on operations. The outcome of such appraisal activity is uncertain. Upon economically exploitable mineral deposits being established, sufficient finance will be required to bring such discoveries into production. At 31 December 2020 impairment charges of $10,000 (2019: $1,985,000) had been provided and charged to the income statement in respect of the above exploration costs previously capitalised by Hebei Sino Anglo.

POST BALANCE SHEET EVENTS

As at 31 December 2020 there were no adjusting post balance sheet events (2019: none). Since 31 December 2020 the Company has bought in 316,840 shares to be held in treasury at a cost of $584,000.

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May 13, 2021 02:00 ET (06:00 GMT)

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