Jakarta, INTI - Chinese battery manufacturer Tianneng Group inaugurates a production operational base in Surabaya, East Java. The production base is expected to supply the growing demand for electric vehicle (EV) batteries in the domestic market and Southeast Asia.
Aside from being a center of national industrial activity, Surabaya is considered to have a manufacturing ecosystem, logistics network, and proximity to customers and business partners that are key to the development of the EV industry.
Three Factors of Choosing Surabaya
Tianneng's President of International Business, Eric Xu, stated that there were three main factors that led the company to choose East Java. First, the majority of consumers are located on the island of Java. Second, logistics access is considered more efficient. Third, most of the company's industrial partners also operate in the Surabaya area.
"Our customers, logistics network, and industrial partners are located in East Java. These three factors are the main reasons for us to build a production facility here," said Eric at the factory's inauguration in Surabaya on Thursday, June 25, 2026.
This move underscores Tianneng's commitment to expanding its business in Indonesia. The company also signed strategic partnerships with PT Tri Mega Baterindo, Goda, U-Winfly, GreenTech, and Aima to strengthen the national EV industry supply chain.
The Head of the East Java Provincial Investment Office, Dyah Wahyu Ermawati, assessed that the investment aligns with the government's agenda to accelerate the energy transition and develop a green economy.
According to her, the presence of Tianneng's production facility will strengthen the EV ecosystem in Indonesia and open opportunities for broader collaboration between domestic industry players and global investors.
"The East Java Provincial Government is committed to facilitating investment services so that this project can develop sustainably and impact the national industry," said Dyah.
Tianneng’s Battery Technology
Meanwhile, Tianneng Group Chairman, Zhang Tianren, believes that the global energy transformation has become an unavoidable new direction. Therefore, the company continues to develop various energy storage technologies, ranging from lead-acid, lithium, hydrogen, sodium, and solid-state batteries.
In addition to building a factory, Tianneng is also introducing battery technology tailored to Southeast Asia's tropical climate. For lead-acid batteries, the company is introducing the Tianneng Durable Series, which is claimed to increase driving range by around 10–15 percent and extend service life by up to twofold at operating temperatures of up to 45 degrees Celsius.
Meanwhile, the lithium batteries produced use an IP67-standard design, making them resistant to dust and water immersion. The solid-state battery currently being developed has an energy density of up to 350 Wh/kg, with a range of approximately 60 percent greater than Lithium Iron Phosphate (LFP)-based batteries.
Tianneng's investment further strengthens East Java's position as a hub for EV development in Indonesia. With supporting infrastructure, a large market, and a growing manufacturing ecosystem, the province is considered increasingly attractive to global investors looking to build an EV supply chain in Southeast Asia.
Conclusion
Chinese battery manufacturer Tianneng Group inaugurates its production facility in Surabaya, East Java, for electric vehicle batteries in Indonesia to meet domestic and Southeast Asian market demand. The company chose the area due to its proximity to consumers, efficient logistics network, and the presence of industry partners in the region. Tianneng has also established strategic partnerships with several national companies to strengthen the electric vehicle industry supply chain. The East Java Provincial Government welcomed this investment, as it is seen as supporting the energy transition, developing a green economy, and strengthening the national electric vehicle ecosystem.
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