Dinto Solar, a manufacturer specialising in heterojunction (HJT) technology, has received mandatory certification from the Thai Industrial Standards Institute (TISI) for its solar modules. The company is among the first photovoltaic (PV) module manufacturers worldwide to qualify under Thailand’s new requirements and the first dedicated HJT module manufacturer to obtain the certification.
Thailand’s compulsory safety requirements for crystalline silicon PV modules came into effect on October 30, 2026. Solar modules imported for sale must comply with the applicable Thai standards and be covered by a TISI licence. The certification enables Dinto Solar to meet regulatory requirements and strengthen its readiness to serve customers in the Thai market.
The certification was granted under TIS 61730 Part 2-2567, aligned with IEC 61730-2:2023, covering electrical insulation, fire safety and mechanical strength. TISI auditors inspected Dinto Solar’s manufacturing facilities in Longgang and Suining, China, reviewing quality management systems, production controls, supply chains and traceability. The company’s modules, developed and manufactured in-house, passed the assessment on the first application.
The certified product portfolio covers 33 power ratings ranging from 455 W to 770 W, catering to residential rooftop installations, commercial and industrial (C&I) projects and utility-scale solar plants. The range provides Thai developers and engineering, procurement and construction (EPC) contractors with greater flexibility in product selection and system design.
For businesses with limited rooftop space, HJT technology’s high efficiency supports increased power generation per square metre. Dinto Solar’s G12-132 module features a temperature coefficient of −0.24%/°C, helping reduce heat-related power losses. Butyl sealing and coated dual-glass construction further enhance moisture resistance and durability, supporting reliable energy generation under Thailand’s hot and humid climatic conditions.
JJ Energy Company Limited, Dinto Solar’s exclusive partner in Thailand, holds the local import licences. The companies’ 2026–2027 agreement, announced in September, includes an initial 30 MW order for G12-132 HJT modules for Thai C&I rooftop installations. The certification allows both companies to proceed with import arrangements, customs clearance and distribution preparations ahead of delivery.
With certified products and local market partnerships in place, Dinto Solar is strengthening its position in Thailand while expanding its presence across Southeast Asia. The company plans to continue collaborating with regional partners to increase the adoption of high-efficiency HJT solar solutions, focusing on reliable performance, long-term energy yield and customer value.
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