Cookson Electronics, a materials science company that provides high-performance materials, chemistry and technology solutions to the electronics and surface finishing industries located in South Plainfield, N.J., has promoted Tim Williams to regional vice president of Alpha Americas. He has been with Alpha and Cookson Electronics for more than 20 years in a variety of sales and marketing positions, including four years in Singapore as general manager of Alpha Singapore and as vice president of sales for the Asia-Pacific region. Most recently, Tim has been Alpha’s vice president of sales in North America.