About us. PAN PACIFIC MFG, INC. is a growing packaging company in Hayward, CA that has been established in the Bay Area for over 40 years. We are professional, innovative, customer-centric and our goal is to provide a range of packaging products, specifically bags, to service the following industries: retail, food/restaurant, airline, hospitality, janitorial, e:commerce, college bookstores, travel, professional sports teams, etc. Our work environ...