Pro Chemicals LLC, Green Bay, Wis., acquired Chaska Chemical Co., Savage Minn.
WS Packaging Group, Green Bay, Wis., acquired Boelter Industries, Winona, Minn.
National Bulk Equipment, Holland, Mich., completed the acquisition of General Processing Systems. FMC Corp., Philadelphia, acquired Phytone Ltd., a natural colors producer based in the United Kingdom.
