UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended: March 31, 2019 or [_] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from: ___________ to ___________ Commission file number: 01-07698 ACME UNITED CORPORATION (Exact Name of Registrant as Specified in Its Charter) | --- | |------------ ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-K [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2018 or [_] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from: ___________ to ___________ Commission file number: 01-07698 ACME UNITED CORPORATION (Exact Name of Registrant as Specified in Its Charter) Connecticut 06-0236700 Sta ...