Sumber Rejeki, and the cooperative legal entity was issued on September 10, 1999, and the cooperative has continued until now.For products from Kopinkra, namely savings and loans, sales of craft support materials such as sandpaper of various sizes ranging from 40 to 400 sizes, wood glue, various kinds of top coats, cardboard, sand sealer, round sandpaper and pads, sales of batik wood crafts and natural functional ones such as cups , various cutting boards, wooden plates of various sizes, bowls, trays, forks, spoons, trays, chopsticks, glasses, coasters, flower vases and many other types.