Carbon County Chamber of Commerce will host a Business After Hours Mixer from 5 to 7 p.m. Tuesday, Feb. 16, at Platz's Restaurant, Lehighton. For planning purposes, RSVPs are required by noon Monday, Feb. 15. For more information and/or to RSVP, please contact the CCCC Office at (610) 379-5000 or mail@carboncountychamber.org.