Sonoma Pharmaceuticals, Inc. announced that it has entered into a distribution agreement with Daewoong Pharmaceutical Co. Ltd. for the marketing and distribution of PrimocynTM Skin Solution products in South Korea. Pursuant to the distribution agreement, Daewoong Pharmaceutical will have the exclusive right to market, sell and distribute Primocyn Skin Solution products, containing Sonoma's Microcyn technology, in South Korea.