PT. Sintra Sinarindo Elektrik (SINTRA) was founded in October 1996 and has firmly established itself as a market leader in the electrical manufacturing industry. The company specializes in the design and manufacturing of 33 kV-class distribution transformers and 150 kV-class power transformers, with a power rating capacity reaching up to 150,000 kVA.

Operating for over 25 years, SINTRA has successfully developed industry-leading technical expertise and significantly expanded its production capabilities. This long-standing commitment to quality and technical excellence has enabled SINTRA to become one of the top suppliers of electrical transformers to PT. PLN (Persero), which is Indonesia's state-owned power company.

In addition to its vital role in supporting the national electrical grid, SINTRA has also become a highly recommended and trusted supplier for a diverse range of clients. These include various EPC (Engineering, Procurement, and Construction) contractors, consultants, commercial buildings, and private companies operating in both Indonesian and overseas markets. SINTRA's robust transformers power numerous essential heavy industries, such as oil and gas, mining, chemicals, smelters, fiber, glass, textiles, rubber, and pulp and paper. Through continuous innovation, SINTRA remains dedicated to delivering reliable and efficient energy solutions to support critical infrastructure development worldwide.