VSUN Solar, OCI ink polysilicon supply agreement

Facebook
Twitter
LinkedIn
Reddit
Email
VSUN and OCI have signed a polysilicon supply agreement
The polysilicon agreement will support VSUN’s goal to integrate its supply chain vertically. Image: VSUN

TOYO SOLAR, a solar cell subsidiary of Tokyo-headquartered solar manufacturer VSUN SOLAR, has signed a long-term polysilicon supply agreement with South Korean-owned polysilicon producer OCI.

The new partnership will support VSUN’s goal to vertically integrate its global solar supply chain, although companies have not disclosed the amount of polysilicon to be supplied.

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

Not ready to commit yet?
  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

VSUN has a current annual nameplate capacity of 4GW of solar modules as well as of tunnel oxide passivated contact (TOPCon) solar cells in Vietnam, with Phase II of the solar cell capacity expansion underway.

Moreover, the company is also working on a 4GW wafer plant in Southeast Asia, which is expected to be operational during the second quarter of 2024.

Lewis Cai, CEO of VSUN SOLAR, said: “The partnership with OCI safeguards the stable supply of critical raw materials along VSUN’s production chain. This crucial alliance is a testament to VSUN’s commitment to maintaining a resilient and robust supply chain.”

Earlier this month, the solar manufacturer company appointed Aihua Wang as chief technology officer of VSUN. In a recent interview with PV Tech, Wang spoke about the technological transition between p-type and n-type and how the company is looking towards improving its TOPCon technology, while developing other technologies.

Read Next

August 28, 2025
Bahraini, Chinese, Egyptian and Emirati groups have agreed to develop a new solar and storage manufacturing facility in Egypt
August 28, 2025
Boviet Solar has completed exterior construction work on its 3GW PV cell manufacturing facility in Greenville, Pitt County, North Carolina. 
August 28, 2025
JinkoSolar has sold 41.8GW of PV modules in the first half of the year, despite growing financial losses for its manufacturing subsidiary.
August 26, 2025
Jakson Engineers is investing over INR80 billion (US$912.5 million) to set up a 6GW integrated solar module, cell, and wafer plant.
August 26, 2025
India installed 14.3GW of new utility-scale solar capacity in the first half (H1) of 2025, marking a 49% increase year-on-year.
August 21, 2025
JA Solar's CTO, Zi Ouyang, discusses the company's latest module technologies and why the future is tandem.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
September 16, 2025
Athens, Greece
Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK
Solar Media Events
October 2, 2025
London,UK
Solar Media Events
October 7, 2025
Manila, Philippines