After the paper has been securely shredded, it is securely recycled. This process requires shredded paper, then the paper is delivered to a local recycler who baled and then categorised into two grades for market purposes – either sorted office waste (SOW) or coloured heavy letter (CHL). Shredded paper is recycled by being sent to a tissue mill which produces household and business products, while the CHL grade is sent to paper mills which produce pulp and recycled high-grade paper.