WorkVenture gives you an inside look at what it's like to work at Union Paper Cartons Co., Ltd. (UPC), office & team photos, reviews and more. This is the Union Paper Cartons Co., Ltd. (UPC) Company Page. All content is posted anonymously by employees currently or previously working at Union Paper Cartons Co., Ltd. (UPC).Apply to Poon PholApply to OffpeakApply to Norse RepublicsApply to WorkVenture Technologies