EASTERN CO

The Company’s business is subject to several risks, some of which are beyond its control. In addition to the other information set forth in this Form 10-Q, the Company’s shareholders should carefully consider the risk factors discussed in Part I, Item 1A,Risk Factors, of the 2025 Form 10-K. These risk factors could have a material adverse effect on the Company’s business, results of operations, financial condition and/or liquidity and could cause our operating results to vary significantly from period to period. As of April 4, 2026, there have been no material changes to the risk factors disclosed in the 2025 Form 10-K. The Company may disclose changes to such risk factors or disclose additional risk factors from time to time in its future filings with the SEC. Additional risks and uncertainties not currently known to the Company or that it currently deems to be immaterial also may materially adversely affect its business, financial condition, or operating results.