Sorted Office Paper Cardboard Bales

Sorted office paper (SOP) is a premium recovered paper grade consisting of white office paper, printer paper, and similar high-quality materials. This grade commands the highest prices in the recovered paper market due to its clean fibers and bright color.

SOP comes primarily from office environments with paper-heavy workflows. Print shops, copy centers, and administrative offices generate significant volumes. The material must be sorted to exclude colored paper, glossy items, and other non-qualifying materials.

Mills use SOP to produce high-quality recycled paper including office paper, tissue, and printing papers. The clean, bright fibers enable production of white paper without excessive bleaching.

For generators, SOP recycling requires more effort than mixed paper but rewards the effort with higher revenue. Proper sorting, clean storage, and reliable baling maximize returns on this premium grade.