GCS Holdings, Inc. and Epistar have entered an agreement for strategic collaborations in which GCS will support Epistar and its subsidiaries the technologies needed to offer high-volume 6“ compound semiconductor foundry services to customers worldwide. Both companies will collaborate in several business areas and progress in stages going forward. GCS also plans to increase the investment in Unikorn in the future depending on the business needs. It is expected that this strategic partnership will combine the best of two companies and collectively offer competitive and needed capacity, technology and quality to the compound semiconductor industry to achieve the next level of scale and profitability.