Glenn Frohring has been promoted to president of Absolute Haitian Corp. from his post as vice president of sales and marketing.
The Worcester firm sells injection presses made by Ningbo Haitian Group Ltd. of Ningbo, China.
Frohring succeeds Mike Ortolano, who remains chief technical officer and is president of a new, affiliated company, Absolute Green Energy Corp.
Absolute Green Energy will offer products and services to help clients reduce energy costs. The company also is a dealer of solar-power equipment and solar water heaters.