Register by Monday for regional chamber after hours Posted on October 12, 2016 0 The Upper Sandusky Area Chamber of Commerce is participating in a joint regional chamber business expo after hours event from 4-7 p.m. Oct. 20 at All Occasions Catering, 6989 Waldo Delaware Rd., Waldo. Pre-registration is required by Monday by contacting the chamber at 419-294-3349.