Supreme Manufacturing, Inc., a manufacturer of floating clamshell dredges and supporting equipment, announced the appointment of Chris Nelson as their Vice President and National Sales Manager. Nelson brings with him nearly 20 years of experience in the floating clamshell dredge industry. He is active in the following organizations: NSSGA (M+S board,) OAIMA, CALCIMA, MAA, IAAP. Nelson is responsible for sales and marketing throughout North America.