Establishment time : International Paper Company was established on January 27, 1898.

website : https://www.internationalpaper.com

Main Product : Main products include packaging materials (corrugated containers, paperboard), printing and writing papers, and specialty papers.

Establishment time : Mondi plc was established on 27 June 2017.

website : https://www.mondi.com

Main Product : Main products include packaging and paper solutions such as flexible packaging, corrugated packaging, and specialty papers.

Establishment time : Georgia-Pacific LLC was established in 1927.

website : www.gp.com

Main Product : Main products include paper, packaging, building products, and tissue products.

Establishment time : 2011

website : www.gammaskills.com

Main Product : carton box,Corrugated cardboard,Mailer Box,fanfold material,color box,packaging box

Establishment time : WestRock Company was established on July 1, 2015, through the merger of RockTenn and MeadWestvaco Corporation.

website : https://www.westrock.com

Main Product : Main products include corrugated packaging, paperboard packaging, flexible packaging, and sustainable paper and packaging solutions.

Establishment time : Smurfit Kappa Group was established in 1965.

website : www.smurfitkappa.com

Main Product : Main products include corrugated packaging, paperboard, and sustainable packaging solutions.

Establishment time : Packaging Corporation of America (PCA) was established in 1936.

website : https://www.packagingcorp.com

Main Product : PCA's main products include corrugated containers, paperboard packaging, and custom packaging solutions.

Establishment time : DS Smith plc was established on 1 January 1987.

website : www.dssmith.com

Main Product : Main products include corrugated packaging, paper, and sustainable packaging solutions.

Establishment time : UPM-Kymmene Corporation was established on January 1, 1997, through the merger of UPM and Kymmene Corporation.

website : https://www.upm.com

Main Product : Main products include paper, pulp, wood-based biofuels, and renewable materials such as bioplastics and wood-based textiles.

Establishment time : 1950 (originally founded as Nippon Paper Mill Co., Ltd.)

website : https://www.nipponpaper.co.jp

Main Product : Paper and paperboard, pulp, packaging materials, specialty papers, and recycled paper products

Establishment time : SCA was established on January 1, 1928.

website : https://www.sca.com

Main Product : Main products include hygiene products (such as toilet paper, facial tissue, and baby wipes), forest products (like pulp and paper), and packaging materials.