The feedstock for one of the main products, corrugating medium, is birch pulpwood.
The production process begins with logging. PCBK's own logging area of 498,000 hectares is located in Dobryanskiy District of Perm Territory. The total rated woodcutting capacity is 933,000 m3 per year. For manufacturing, hardwood (birch) pulpwood according to GOST 9462-2016, is used. The annual birch pulpwood consumption is 180 thousand cubic meters. Producing one ton of high yield pulp requires about 2.5 - 3 m³ of wood.
High yield pulp is now being used extensively in the production of packaging grades of paper and board. It consists of long fibers that retain the original properties of the wood species from which it is made. At PCBK, high yield pulp is produced using the neutral sulfite process.