STR Holdings, Inc. is a holding company. The Company, through its subsidiaries, provides encapsulants to the solar industry. Encapsulant is a critical component used to protect and hold solar modules together. The Company developed ethylene-vinyl acetate (EVA) based encapsulants for use in commercial solar module manufacturing. The Company also launched a quality assurance business (QA), which provided product development, inspection, testing and audit services that enabled its retail and manufacturing customers to determine whether products met applicable safety, regulatory, quality, performance and social standards.