EASTERN INTERNATIONAL BANK

ued under the Plan cannot exceed 400,000 shares of common stock. Shares available for issuance at February 28, 2026 were 188,269 . Certent, Inc. is the record keeper for the Plan. Administrative expenses of the Plan are paid by the Company. Plan Year The Plan year begins on March 1 and ends on February 28 (or February 29 in the case of a leap year). ​ Eligibility An employee of the Company or any Participating Subsidiary is eligible to participate in the Plan if the employee has been continuously employed by the Company or any Participating Subsidiary for at least 90 days (except that any bona fide leave of absence will not render a participant so long as the leave does not exceed three months or, if longer than three months, the individual’s right to reemployment is provided by statute or

discretionary safe harbor contribution of 3%. All non-union U.S. employees are eligible to join the plan . The Company made contributions to the plan as follows: 2025 2024 Regular matching contributions $ 957,137 $ 1,068,843 Transitional credit contributions 80,787 91,945 Non-discretionary contributions 368,829 376,962 Total contributions made for the period $ 1,406,753 $ 1,537,750 62 Table of Contents The Eastern Company Notes to Consolidated Financial Statements (continued) 11. EARNINGS PER SHARE The denominators used in the earnings per share computations follow: 2025 2024 Basic: Weighted average shares outstanding 6,092,374 6,207,754 Diluted: Weighted average shares outstanding 6,092,374 6,207,754 Dilutive stock awards 7,953 7,891 Denominator for diluted earnings per share 6,100,327 6,

Big 3 Products. As a percentage of net sales, product development costs were 1.6% for the fourth quarter of 2025 compared to 1.7% for the corresponding period in 2024. Selling and administrative expenses in the fourth quarter of 2025 decreased 10.5% compared to the fourth quarter of 2024. As a percentage of net sales, selling and administrative expenses were 17.4% for the fourth quarter of 2025 compared to 16.8% for the corresponding period in 2024. The decrease was primarily the result of decreased commissions, legal fees and personnel-related costs. Net income from continuing operations for the fourth quarter of 2025 was $1.2 million, or $0.19 per diluted share, from $1.6 million, or $0.26 per diluted share, for the same period in 2024. 23 Table of Contents Fiscal Year 2025 Compared to F

participants whose employment commencement date occurs on or after January 1, 2025, all Company contributions made on behalf of such participants are subject to a three-year cliff vesting schedule. Participants who were participating in the Plan as of December 31, 2024, remain fully vested in the balance held in their Plan accounts. A participant is credited with a year of service for vesting purposes upon completion of 365 days ( one year ) of service. Distributions and Withdrawals: Distributions are made only when a person ceases to be a participant. Upon termination, including retirement, a participant has various options available, as described in the Plan, with respect to the distribution of his or her Plan account balances. Participants may make in-service withdrawals in accordance w

de”), certain amounts for highly compensated employees are not contributed to the Plan. No contribution is required from any participant under the Plan. However, new employees are automatically enrolled in the Plan to make before-tax contributions of five percent ( 5 %) of their eligible compensation beginning with the first payroll period that is administratively practicable after the employee's date of hire. Employees that are automatically enrolled can elect not to make contributions or to contribute a different percentage of their eligible compensation. Participants may make contributions on a before-tax, Roth after-tax and/or traditional after-tax basis to the Plan. Participants who are age 50 or older by the end of a Plan year are eligible to make before-tax and Roth after-tax catch-

net assets available for benefits attributable to this investment. 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. The BNYM Insight Stable Value Fund, a collective -9- PHILIP MORRIS INTERNATIONAL DEFERRED PROFIT-SHARING PLAN NOTES TO FINANCIAL STATEMENTS (continued) trust, is valued based on information reported by the investment advisor using the audited financial statements of the collective trust which are as of and for the year ended December 31, 2025. • Mutual funds are stated at the respective funds' net asset value per share, which is determined based on market values at the