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Founded in 2010 by solar industry professionals, STS provides technical inspection and advisory services for renewable energy projects, with a focus on solar PV modules and battery energy storage systems. Its work includes conformity assessments, factory audits, production supervision, inspections before and after dispatch, testing oversight, supply-chain due diligence, market intelligence, and technical advice. STS serves project developers, EPCs, utilities, and module buyers worldwide, supporting quality assurance and responsible supply chains for large-scale solar and storage projects. The company is ISO 17020 accredited for PV module pre-shipment inspection.