Southeast Asia Solar Supply Chain Map 2025

Hong Kong-based Sinovoltaics has recently released the inaugural edition of its Southeast Asia Solar Supply Chain Map 2025, offering valuable insights into the rapidly changing solar manufacturing landscape in the region. This report forms part of Sinovoltaics’ global market intelligence series, which provides comprehensive regional maps that detail the key manufacturers and suppliers spanning the entire solar value chain from polysilicon and wafers to solar cells and modules. Key Trends and Disruptions in Southeast Asia Once considered viable alternatives to China for solar manufacturing, Southeast Asian countries like Vietnam, Thailand, and Cambodia are now facing significant disruptions. This shift is primarily due to U.S. import tariffs, which have hit the operational capacities of these nations hard. As a result, there is a visible reorientation of manufacturing activity toward countries like Laos and Indonesia, which currently lie outside the scope of the tariffs. Manufacturers are adapting by diversifying export markets, particularly toward Europe and emerging hubs in the Middle East, as they navigate trade tensions and seek tariff-free access to global markets. New Players and Regional Growth The report also highlights the entry of new manufacturers, such as ICA Solar and United Renewable Energy (URE), both of which have recently expanded operations in the region.Southeast Asia is experiencing one of the fastest growth rates in solar manufacturing worldwide. The region’s nameplate photovoltaic (PV) module capacity stands at 86 GW and is forecast to grow to 101 GW by 2028–2030. Similarly, cell manufacturing capacity, currently at 51.3 GW, is expected to rise to 69.8 GW by 2030. The upstream sector is also booming. Ingot production is set to nearly double from 16 GW to 30 GW, backed by a dramatic increase in polysilicon production, from 82,000 metric tonnes to 342,000 metric tonnes. Additionally, Southeast Asia is projected to add 102,000 metric tonnes of metallurgical-grade silicon (MG-Si) capacity to support this upstream expansion. Comparison with India’s Solar Manufacturing Landscape India, another major player in the global solar supply chain, has been aggressively promoting domestic solar manufacturing through initiatives such as the Production Linked Incentive (PLI) Scheme, the “Make in India” campaign, and customs duties on imported solar cells and modules. While India's manufacturing capacity is growing steadily, the Southeast Asian surge poses both challenges and opportunities: 1. Competition for Investment and Market Share Southeast Asia’s rapid shift and expansion in solar manufacturing capacity,