Tri-Wall International Trading Co., Ltd. is a professional manufacturer and global provider of heavy-duty packaging solutions based in Shanghai, China. As part of the Tri-Wall (China) Group and the broader Rengo Co., Ltd. network, the company leverages a legacy that originated in the United States military industry to provide high-performance packaging materials. Operating with a workforce of 501 to 1000 employees, the company maintains a strong manufacturing presence and serves as a contract manufacturer offering comprehensive OEM services tailored to specific client drawings and requirements.
The company specializes in the production of heavy-duty corrugated boards and boxes, for which the Tri-Wall brand is a recognized global standard. Its extensive product portfolio includes EZ-BULK liquid containers, Uni-Pak returnable cases, steel pallets, wooden boxes, and X-type hollow boards. Beyond core containers, they supply essential packaging tools and accessories such as PET packing straps, galvanized steel strips, packing buckles, and both pneumatic and plastic strapping machines.
With a business model focused on international trade, Tri-Wall International Trading Co., Ltd. supports a wide range of industries including transportation, electrical, and electronics. The company benefits from a vast overseas network across Asia, Europe, and North America, ensuring high-quality, competitive packaging solutions and logistics support for global markets.
Qingdao Wantong Corrugated Plastic Products Co., Ltd. is a professional manufacturer and trading company established in 2014 and based in Qingdao, China. Recognized as a leading producer of plastic corrugated sheets in North China, the company integrates development, manufacturing, and export trade. They operate a specialized factory and maintain ISO 9001 certification, adhering to modern scientific management practices to ensure high product quality.
The company specializes in a wide range of polypropylene (PP) hollow board solutions, including Coroplast sheets, fluted sheets, and Cor-rex boards ranging from 2mm to 15mm in thickness. Their diverse product portfolio features specialized packaging such as collapsible vegetable and fruit export boxes, antistatic sheets for electronics, plastic layer pads for bottle transport, and durable picking bins for warehouse logistics. Additionally, they provide industrial solutions like drilling core boxes for mining, floor protection sheets for construction, and advertising display boards.
As an OEM service provider, Qingdao Wantong Corrugated Plastic Products Co., Ltd. caters to international markets, with a significant export presence in the United States and Canada. Their capabilities extend to producing fire-retardant, edge-sealed, and customized corrugated plastic products designed for various industries, including agriculture, construction, and manufacturing.