ERIXF Telefon AB LM Ericsson Sweden (PK)

NOTES TO FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2017 AND 2016, AND FOR THE YEAR ENDED DECEMBER 31, 2017

(Thousands of dollars)

The following description of the Ericsson US 401(k) Plan (the “Plan”) provides only general information. Participants should refer to the Plan agreement for a more complete description of the Plan’s provision. The Plan was created by action of the board of directors of Ericsson Inc. (the “Company” or “Ericsson” or the “Employer”) on May 27, 1983, effective July 1, 1983. The Plan is a defined contribution plan and is administered by an administrative committee (the “Committee”) which monitors the investment objectives and performance of the Plan’s individual investment options.

The Plan is a single employer plan.

Effective August 24, 2009, a Master Trust was created to permit the commingling of trust assets of both the Plan and the Ericsson Services 401(k) Plan. On December 28, 2012 the Ericsson Services 401(k) Plan was merged into the Ericsson US 401(k) Plan formerly called the Ericsson Capital Accumulation and Savings Plan. Total assets transferred into the Plan due to the merger were approximately $140,800. Effective July 18, 2016 Great-West Trust (“Trustee”) was made trustee of the Plan and the Master Trust was dissolved. JPMorgan Chase Bank Investor Services was the former trustee (“former Trustee”). Currently, Empower Retirement, the retirement services business of Great-West Financial, is the recordkeeper of the Plan.

Each pay period participant contributions are made to the Trustee for investment. There are currently seven collective trusts or collectively known as the “Stable Value Fund”, nine mutual funds, three commingled funds, ten common collective trusts and two separate accounts. In addition there is a self – directed brokerage account (“SDA”) to which participants may direct their investments. The SDA allows access to a wide variety of mutual funds, stocks and bonds. Brokerage services are provided through the Trustee. Employees interested in SDA can contact Empower or by visiting empower-retirement.com/participant to request an enrollment kit which includes application information or can contact the call center and request an application. Participants can choose these options for their contributions as well as the Company contributions.

Effective March 1, 2016 the Envivio Defined Contribution Plan merged into the Plan. Total assets transferred into the Plan due to the merger were approximately $1,542. This allowed the Envivio employees who satisfied the eligibility requirements of the Plan participation in the Plan.

Basis of Accounting

The Plan’s financial statements are presented using the accrual method of accounting in conformity with U.S. generally accepted accounting principles (“GAAP”).

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities and changes therein. Actual results could differ from those estimates.

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NOTES TO FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2017 AND 2016, AND FOR THE YEAR ENDED DECEMBER 31, 2017

(Thousands of dollars)

Risks and Uncertainties

The Plan provides for various investment options of specified registered investment companies. The underlying investments held by the registered investment companies may include stocks, bonds, fixed income securities, mutual funds and other investment securities. Such investments are exposed to various risks, such as interest rate, market and credit risk. Due to the level of risk associated with certain investment securities and the level of uncertainty related to changes in the value of investment securities, it is at least reasonably possible that changes in the values of investment securities in the near term could materially affect participants’ account balances and the amounts reported in the statement of net assets available for benefits.

Contributions and Contribution Receivables

Contributions are recorded on the accrual method of accounting. Contributions receivable are obligations arising from amounts owed to the Plan from participants or the Employer that have not been included in the Plan’s investments at year end. Contributions receivable are recorded at cost, which approximates their fair value. Total contributions receivable were $5,995 and $2,014 at December 31, 2017 and 2016, respectively.

Valuation of Investments

The Plan’s investments are reported at fair value, with the exception of the Stable Value Fund which is reported at contract value. The fair value of a financial instrument is the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (the exit price). See Note 4 for further discussion of fair value and fair value measurements. See Note 8 for further discussion of investments carried at contract value.

Investment Income

Purchases and sales of the investments within the Plan are reflected on a trade-date basis. Dividend income is recorded on the ex-dividend date. Interest income is recorded on the accrual basis.

Security Transactions

The Plan presents in the Statement of Changes in Net Assets Available for Benefits the net appreciation or depreciation in the fair value of its investments which consists of the realized gains and losses and the unrealized appreciation (depreciation) on those investments. Realized gains and losses on security transactions are determined on the trade date (the date the order to buy or sell is executed) as the difference between proceeds received and historical cost. Unrealized gains and losses represent the net change in market value of investments held during the year which are presented at fair value, with adjustments for investments sold.

Upon withdrawal from the Plan, participants invested in Company stock may elect to receive cash or Company stock. Whenever a participant receives stock, the difference between the cost of such stock and the market value on the applicable valuation date is reflected as a realized gain or loss of the Plan. Gains or losses are also realized whenever stocks are sold in satisfaction of the participants’ election to take cash upon withdrawal.

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ERICSSON US 401(k) PLAN

NOTES TO FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2017 AND 2016, AND FOR THE YEAR ENDED DECEMBER 31, 2017

(Thousands of dollars)

Vesting and Forfeitures

Company and active participants’ capital accumulation contributions, and participants’ savings contributions, and the earnings thereon, are fully and immediately vested, with the exception of non-active participants transferred in from other plans, which continue to be subject to the former plans’ vesting requirements. Accordingly, the forfeiture balance as of December 31, 2017 and 2016 was $1,831 and $1,234, respectively. During 2017, $182 of forfeitures were used to pay Plan administrative expenses.

Expenses of the Plan

All net costs and expenses of the Plan and its administration, including all fees and expenses of the Trustee, are paid by the Company. All taxes, commissions and other charges on purchases, sales and transfers of Company stock and other securities are paid by the Trustee out of the fund or account involved in such purchase or sale. Participants are responsible for their own managed account fees, brokerage fees, and loan fees.

Administration

The Committee is responsible for the general administration of the Plan and for carrying out its provisions. Members of the Committee serve without compensation from the Plan.

Notes Receivable from Participants

Notes receivables from participants may be granted to participants in an amount not to exceed 50% of the participant’s contribution account. The maximum loan amount is fifty thousand dollars minus the participant’s highest loan balance (if any) during the previous 12 months; the minimum loan amount is one thousand dollars. Loans may be repaid through payroll deductions over a selected period between 12 months and 60 months. An employee is allowed only one loan at a time. If an employee misses payments, he/she will be required to make up the payments and accrued interest immediately. Failure to keep the loan current could result in the loan being classified as a ‘deemed distribution’, which is taxable income to the employee. Interest on the loan is set at the time of issuance, and the rate is the prime rate plus 1%. At December 31, 2017, interest rates range from 3.25% to 10.50%.

Termination Priorities

The Company reserves the right, by action of the board, to amend, suspend or terminate the Plan. In the event that the Plan is terminated or the Company discontinues its contributions, all amounts allocated to the participants’ accounts and all assets held under the Plan will be held for distribution to the participants.

The Company currently has no plans to terminate the Plan.

Benefit Payments

At December 31, 2017 and 2016, there were no benefit claims which had been processed and approved for payment but not yet paid. At Empower Retirement, the recordkeeper of the Plan, benefit payments are determined, paid and taxed to participants based upon the date the check is first processed. For financial statement purposes, benefit payments are recorded when paid.

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ERICSSON US 401(k) PLAN

NOTES TO FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2017 AND 2016, AND FOR THE YEAR ENDED DECEMBER 31, 2017

(Thousands of dollars)

The Company offers the Plan for eligible U.S. employees to which qualified employees may elect to contribute stated percentages of eligible pay. Participation by eligible employees is voluntary and is defined as any regular salaried or hourly employee who is employed by a participating employer and receives regular compensation in the form of a weekly, biweekly semi-monthly or monthly salary from an Ericsson U.S. payroll. All eligible employees may participate in the Plan the first day of any calendar quarter following the date they become eligible. At December 31, 2017 and 2016, the numbers of active participants were roughly seven thousand and nine thousand, respectively.

Eligible participants may contribute on a pre-tax and/or Roth basis any whole percentage from 1% to 50% of their eligible earnings up to current IRS limits into the Capital Accumulation 401(k) portion of the Plan; participants may also contribute any whole percentage from 1% to 5% of their eligible earnings to the Savings portion on an after-tax basis. The Company contributes 3% of a participant’s eligible pay for employees who are not actively participating in the Company’s Defined Benefit Plan, whether or not the employee contributes. The Company also matches 100% of the first 3% and an additional 50% on the 4 ^th % and 5 ^th % contributed. All employee and Employer contributions are 100% vested immediately.

Participants may change their percentage payroll deduction elections at anytime during the year using the web-based Empower Retirement “Retireonline” system. Participants may change investment percentages between funds at any time during the year. Participants may transfer existing fund balances to other available investment options at any time during the year. There are no restrictions on the transfer of investment balances from L M Ericsson Telephone Co. shares of Common Stock to other investment funds.

Each participant’s account is credited with the participant’s contributions, Company contributions and Plan earnings. The benefit to which a participant is entitled is the benefit that can be provided from the participant’s vested account. Participants may direct the investment of their account balances into various investment options offered by the Plan.

Participants may, at any time, request certain in-service withdrawals in the form of a normal or hardship withdrawal. Normal withdrawals may be requested from the Employee Savings account and Company Savings account for money that has been in the Plan for two full calendar years. Hardship withdrawals must meet certain requirements including approval by the Committee.

The accounting standards establish a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.

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ERICSSON US 401(k) PLAN

NOTES TO FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2017 AND 2016, AND FOR THE YEAR ENDED DECEMBER 31, 2017

(Thousands of dollars)

Assets and liabilities measured at fair value are based on one or more of the following three valuation techniques noted in Accounting Standards Codification “ASC” Topic 820; A) Market approach: Prices and other relevant information generated by market transactions involving identical or comparable assets and liabilities. B) Cost approach: Amount that would be required to replace the service capacity of an asset (replacement cost). C) Income approach: Techniques to convert future amounts to a single present amount based upon market expectation (including present value techniques, option-pricing and excess earnings models).

The following is a description of the valuation methodologies used for the investments measured at fair value, including the general classification of such instruments pursuant to the valuation hierarchy.

Mutual Funds

Mutual funds represent investments with various registered investment managers. The fair values of these investments are determined by reference to the fund’s underlying assets, which are principally marketable equity and fixed income securities. Shares held in mutual funds traded on national securities exchanges are valued at the quoted market price as of December 31, 2017 and 2016 and classified as Level 1 assets.

Self-Directed Brokerage Accounts (SDA)

SDA accounts include investments in cash and cash equivalents, common stock, preferred stock, registered investment companies and partnerships and are classified as Level 2 investments. Cash and cash equivalent investments include cash and short-term interest-bearing investments with initial maturities of three months or less. Such amounts are recorded at cost, plus accrued interest. Common stock and preferred stock traded in active markets on national securities exchanges are valued at closing prices on the last business day of each period presented. Securities traded in markets that are not considered active are valued based on quoted market prices, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency. Securities that trade infrequently and therefore have little or no price transparency are valued using the Plan’s investment manager’s best estimates. Mutual funds in registered investment companies are valued as mentioned above. Partnerships are valued using the Plan’s investment manager’s best estimates based on the partnership’s financial statements and the plans allocation of earnings and losses.

Commingled Funds and Common Collective Trusts

Valued using the Net Asset Value (“NAV”) provided by the administrator of the fund. The NAV is based on the value of the underlying assets owned by the fund minus applicable costs and liabilities and then divided by the number of shares outstanding. As these assets are measured at net asset value they are therefore excluded from the fair value hierarchy and included in other.

Common Stocks

Ericsson Inc. common stock and common stocks held in participant-directed brokerage accounts are stated at fair value as quoted on a recognized securities exchange and are valued at the last reported sales price on the last business day of the Plan year and are classified as Level 1 investments.

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ERICSSON US 401(k) PLAN

NOTES TO FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2017 AND 2016, AND FOR THE YEAR ENDED DECEMBER 31, 2017

(Thousands of dollars)

Separately Managed Accounts

Self-managed fund consisting of a portfolio of assets under the management of a professional investment firm and primarily valued using prices obtained from independent pricing services and are classified as Level 2 investments.

The following tables provide information about the financial assets carried at fair value on a recurring basis as of December 31, 2017 and 2016. In 2016 the Plan adopted Accounting Standards Update “ASU” 2015-12 that eliminated fair value measurement and disclosure requirements for fully benefit-responsive investments (i.e. the Stable Value Fund).

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ERICSSON US 401(k) PLAN

NOTES TO FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2017 AND 2016, AND FOR THE YEAR ENDED DECEMBER 31, 2017

(Thousands of dollars)

Certain Plan investments are Common Stock shares of LM Ericsson Telephone Company, a related party of Ericsson Inc. Ericsson Inc. sponsors the plan; therefore, these investments qualify as a party-in-interest transaction. The Plan recorded purchases of $10,226 and sales of $14,241 of the Company’s stock during the year ended December 31, 2017.

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NOTES TO FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2017 AND 2016, AND FOR THE YEAR ENDED DECEMBER 31, 2017

(Thousands of dollars)

Management believes that the Plan is qualified under section 401(a) of the Internal Revenue Code (“IRC”) and therefore, the trust is exempt from taxation under section 501(a). The Internal Revenue Service granted a favorable letter of determination to the Plan covering its most recent amendments on April 6, 2017. Generally, contributions to a qualified plan are deductible by the Company when made, earnings of the trust are tax exempt and participants are not taxed on their benefits until withdrawn from the Plan.

Management believes the Plan remains qualified under the applicable sections of the IRC and the Employee Retirement Income Security Act of 1974.

GAAP requires plan management to evaluate tax positions taken by the Plan and recognize a tax liability (or asset) if the organization has taken an uncertain position that more likely than not would not be sustained upon examination by the Internal Revenue Service. The Plan Administrator has analyzed the tax positions taken by the Plan, and has concluded that as of December 31, 2017, there are no uncertain positions taken or expected to be taken that would require recognition of the liability (or asset) or disclosure in the financial statements. The Plan is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress.

The Plan holds investments in synthetic guaranteed investment contracts (“synthetic GICs”) as part of the stable value fund. The investments in synthetic GICs are presented at fair value on the table of the investments held in the Plan. The fair value of the synthetic GICs equals the total of the fair value of the underlying assets plus the total wrap rebid value, which is calculated by discounting the annual rebid fee, due to rebid, over the duration of the contract assets.

In determining the net assets available for benefits, the synthetic GICs are recorded at their contract values, which are equal to principal balance plus accrued interest. As provided in ASC 962, an investment contract is generally valued at contract value, rather than fair value, to the extent it is fully benefit-responsive.

The Stable Value Fund is credited with earnings on the underlying investments and charged for participant withdrawals and administrative expenses. The synthetic GICs issuers are contractually obligated to repay the principal and a specified interest rate that is guaranteed to the Plan.

The GICs are included in the financial statements at contract value as reported to the Plan by the Trustee, the investment manager. Contract value represents contributions made under the contract, plus earnings, less participant withdrawals and administrative expenses. Participants may ordinarily direct the withdrawal or transfer of all or a portion of their investment at contract value. There are currently no reserves against contract values for credit risk of the contract issuers or otherwise.

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NOTES TO FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2017 AND 2016, AND FOR THE YEAR ENDED DECEMBER 31, 2017

(Thousands of dollars)

In accordance with the investment strategy of the managed accounts, the Plan’s investment managers may execute transactions in various financial instruments that may give rise to varying degrees of off-balance-sheet market and credit risk. These instruments can be executed on an exchange or negotiated in the OTC market. These financial instruments include futures, forward settlement contracts, swap and option contracts.

Swap contracts include equity, credit default and interest rate swap contracts. Equity swaps involve an agreement to exchange cash flows based on the total return of underlying securities.

Credit default swaps involve the exchange of cash flows based on the creditworthiness of the underlying issuer of securities. Interest rate swaps involve an agreement to exchange periodic interest payment streams (typically fixed vs. variable) calculated on an agreed upon periodic interest rate multiplied by a predetermined notional principal amount.

Market risk arises from the potential for changes in value of financial instruments resulting from fluctuations in interest and foreign exchange rates and in prices of debt and equity securities. The gross notional (or contractual) amounts used to express the volume of these transactions do not necessarily represent the amounts potentially subject to market risk. In many cases, these financial instruments serve to reduce, rather than increase, the Plan’s exposure to losses from market or other risks. In addition, the measurement of market risk is meaningful only when all related and offsetting transactions are identified. The Plan’s investment managers generally limit the Plan’s market risk by holding or purchasing offsetting positions.

As a writer of option contracts, the Plan receives a premium to become obligated to buy or sell financial instruments for a period of time at the holder’s option. During this period, the Plan bears the risk of an unfavorable change in the market value of the financial instrument underlying the option, but has no credit risk, as the counterparty has no performance obligation to the Plan once it has paid its cash premium. The Plan is subject to credit risk of counterparty nonperformance on derivative contracts in a gain position, except for written options, which obligate the Plan to perform and do not give rise to any counterparty credit risk.

Investments sold, but not yet purchased by the Plan as of December 31, 2017 and 2016 involve obligations to deliver specified securities at contracted prices and thereby create a liability to purchase the securities at prevailing future market prices.

Accordingly, these transactions result in off-balance sheet risk as the Plan’s ultimate obligation to satisfy the sale of financial instruments sold, but not yet purchased, may exceed the amount recognized in the financial statements. The Plan’s investment managers typically monitor risk exposure related to financial instruments through the use of financial, credit and legal reporting systems.

As of December 31, 2017 and 2016, the Plan did not hold any such investments.

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NOTES TO FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2017 AND 2016, AND FOR THE YEAR ENDED DECEMBER 31, 2017

(Thousands of dollars)

The Plan’s management evaluated subsequent events through the date on which the financial statements were issued, and determined that no additional disclosures were required.

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ERICSSON US 401(k) Plan

SCHEDULE H LINE 4i – SCHEDULE OF ASSETS (HELD AT END OF YEAR)

DECEMBER 31, 2017

(Thousands of dollars)

EIN: 06-1119960

Plan Number: 006

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ERICSSON US 401(k) Plan

SCHEDULE H LINE 4i – SCHEDULE OF ASSETS (HELD AT END OF YEAR)

DECEMBER 31, 2017

(Thousands of dollars)

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ERICSSON US 401(k) Plan

SCHEDULE H LINE 4i – SCHEDULE OF ASSETS (HELD AT END OF YEAR)

DECEMBER 31, 2017

(Thousands of dollars)

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ERICSSON US 401(k) Plan

SCHEDULE H LINE 4i – SCHEDULE OF ASSETS (HELD AT END OF YEAR)

DECEMBER 31, 2017

(Thousands of dollars)