Section 11 Textiles and textiles articles 50 Silk 50 03 Silk waste (incl. cocoons unsuitable for reeling, yarn waste and garnetted stock) 50 03 00 Silk waste (includ'g cocoons unsuitable for reeling, yarn waste and garneted stock). Commodity Code Description 50 03 00 00 Silk waste (includ'g cocoons unsuitable for reeling, yarn waste and garneted stock).