WILMINGTON, Del.--(BUSINESS WIRE) --GemPharmatech (GPT) Co., Ltd. announced the establishment of new operations to house more than 6000 mouse models in Massachusetts and California. GPT is a leading global provider of laboratory animals including cKO/KO and humanized mouse models as research tools supporting drug discovery and pre-clinical research and development. Currently, GPT has a large collection of 15,000+ mouse models and has four existing facilities worldwide.