Longi, Trina Solar and Tongwei team on 5GW mono ingot plant

January 4, 2017
Facebook
Twitter
LinkedIn
Reddit
Email
Longi Silicon Materials, Trina Solar and Tongwei, via its polysilicon subsidiary, Sichuan Yongxiang are to form a Joint Venture (JV) to own and operate a previously planned 5GW monocrystalline silicon ingot pulling production plant in Lijiang City, Yunnan Province, China by Longi. Image: Longi

Three major Chinese PV manufacturers, Longi Silicon Materials, Trina Solar and Tongwei, via its polysilicon subsidiary, Sichuan Yongxiang, are to form a Joint Venture (JV) to own and operate a previously planned 5GW monocrystalline silicon ingot pulling production plant in Lijiang City, Yunnan Province, China, by Longi. 

Longi said in financial filings that it would retain a 60% ownership in the planned production plant, while Trina Solar would hold a 25% interest and Sichuan Yongxiang a 15% stake. 

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Longi had previously announced plans for the 5GW monocrystalline silicon ingot plant in June, 2016 and had initially planned to fund the facility in-house. However, Longi noted that in a JV arrangement it was reducing financial and project risks. 

The company has a range of other dedicated in-house capacity expansions for monocrystalline wafer, cell and modules. 

Silicon Module Super League (SMSL) member Trina Solar is expected to contribute an initial RMB 200 million (US$28.8 million) to the project and Sichuan Yongxiang around RMB 120 million (US$17.3 million). 

Longi still expects to contribute an initial RMB 480 million (US$69 million) to the project, which is expected to incur capital costs of around RMB 800 million (US$115 million). The plant is expected to take more than a year to build and start ramping sometime in 2018. 

According to Finlay Colville, Head of Market Research at Solar Media Ltd, in a new blog on the news, the JV in not unexpected as it forms part of one of the most pro-active technology drives seen for many years within the industry.

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023, 2024 and 2025 were a sell out success and 2026 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.

Read Next

January 21, 2026
LONGi Green, Tongwei, JA Solar, TCL Zhonghuan and Aiko Solar are projecting a combined 2025 deficit of RMB28.9-32.8 billion (US$4.1-4.7 billion).
January 19, 2026
Egyptian manufacturing firm Kemet has signed a deal with Chinese solar manufacturer GCL Technologies to build a 5GW solar cell and module manufacturing hub in the country.
January 19, 2026
Chinese polysilicon producer Daqo New Energy recorded over RMB1 billion in losses in 2025, roughly halving its losses compared with 2024.
January 14, 2026
Solar dominated employment in the renewable energy sector in 2024, accounting for over 40% of the global renewables workforce, the most of any sector.
Premium
January 14, 2026
Analysis: As Eging PV comes under pressure to repay investment in an incomplete manufacturing facility, China’s solar manufacturers face an uphill struggle to put recent challenges behind them.
January 14, 2026
Australian start-up Stellar PV has released early details of the solar ingot and wafer facility it plans to build in the state of Queensland.

Upcoming Events

Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
October 13, 2026
San Francisco Bay Area, USA