M. Holland Co., distributor of thermoplastic resin, has promoted Samantha Stone to director of distribution sales and Tracy Coifman to business development manager, Latin America, the company says.

In her new role, Stone will be responsible for growing sales throughout the U.S. and Canada for the distribution division by directing and managing commercial resources and developing strategy and direction for M. Holland’s field salesforce. Stone succeeds John Haney, who retired last fall. She was previously product manager of engineering resins at Holland has more than 25 years of experience serving in various industry roles, include product design, research and development, quality assurance, sales, and other leadership roles.

Coifman, in his new role, will work directly with suppliers, clients, and agents to determine their business needs. He will work alongside the company’s business development group, which is comprised of six key market teams. He previously worked as M. Holland’s Puerto Rico commercial manager where he was responsible sales activities for the Caribbean and Central America, as well as parts of South America.

“Latin America presents a high-growth opportunity and is a continued priority for M. Holland,” says Xavier Lebrija, the company’s director general of Latin America.

The promotions are part of an initiative to provide better support for clients and suppliers alike.

“We aim to strategically grow sales in our key markets while continuing to provide industry-leading support to our clients, prospects, and suppliers,” says Marc Fern, M. Holland’s commercial vice president. “We believe that Samantha’s extensive industry knowledge and immense respect from those around her will allow her to meet this objective and positively impact M. Holland’s overall business success. We are thrilled to have her step into this role.”