We are two thousand leagues im-export co., ltd . We are a small factory based in da nang viet nam. We supply cat fish maw = pangasius fish maw is derived from healthy fish. Used for isinglass producing. Dried : 100%, ambient stable , no blood nor meat left. Not obtained, prepared or stored with any other product of a lesser health status and has been handled so as to avoid contamination with pathogenic agents. Supply capability : 8 tons/month . Packing : pp bag. We collect from some farmers, so we can give you a very competitive price and we can very flexibly adjust our product fit your request. Thank you, Ms.Yen