File: Attachment HMCL Press release Q4 2023.pdf

PRESS RELEASE Hammond Manufacturing Company Limited

394 Edinburgh Road North Guelph, Ontario, Canada N1H 1E5 Toronto: (905) 456-3770 Guelph: (519) 822-2960 Fax: (519) 822-8987

Trade Symbol TSX:HMM.A

HAMMOND MANUFACTURING COMPANY LIMITED announces financial results for the year and fourth quarter ended December 31, 2023:

Net product sales Year ending: Three months ending: Income from operating activities(*) 12/31/2023 12/31/2022 12/31/2023 12/31/2022 Net income for the period $238,285,000 $225,922,000 Total comprehensive income for the period 28,088,000 19,442,000 $57,275,000 56,847,000 18,761,000 12,003,000 7,269,000 6,981,000 Earnings per share 18,134,000 13,533,000 5,071,000 4,999,000 Basic 4,469,000 4,883,000 Diluted $1.66 $1.06 $0.45 $0.44 $1.66 $1.06 $0.45 $0.44

(*) Earnings from operations is bef ore interest, f oreign exchange, equity interest, other income and taxes NOTE: The interim financial results have not been review ed by an auditor

GUELPH, ONTARIO March 5, 2024

To all employees and shareholders:

Year over year our sales are up 5.5% which included a 2.6% lift from foreign exchange. Gross margins have benefited from price increases, a stabilized workforce and improved utilization of our assets.

Hammond Manufacturing Company Limited manufactures a broad range of products for the electronic and electrical products industry, including metallic and non-metallic enclosures, racks, small cases, outlet strips, surge suppressors and electronic transformers.

For information, contact: Hammond Manufacturing Company Limited Robert F. Hammond, Chairman and CEO Tel. (519) 822-2960 Fax. (519) 822-7289 Email: ir@hammfg.com

For Release March 5, 2024