About Us We specialize in selling GBL (Gamma Butyrolactone) to consumers (till 5 liter) and businesses (for larger quantities than 5 liter) who could not justify purchasing a full 200 Litre drum. Our experience and reliability has made us one of the top retailers of GBL located in Belgium and Germany with literally hundreds of customers all over the world. You only have to sign a form of final destination after your order and we will sent your products right away! So it is really simple!! 1.Place your order: 2.Sign the declaration form 3.Wait for your product to arrive!