About Us Why Choose SIUMAI? Factory Tour Factory direct ex-factory price, without any middleman making the difference. With 20 years of professional experience in the production of paper packaging,SIUMAl welcomes all friends to consult and negotiate. Free proofing to meet the needs of different markets. Most products have no minimum order quantity, short delivery time, and quick delivery of products. Provide ODM, OEM services and customize exclusive products for customers. Strict quality inspection, before production, during production, and before delivery, the whole process is tracked and communicated with customers.