Hemlock sues GET over breach of polysilicon supply deal

Facebook
Twitter
LinkedIn
Reddit
Email

Solar polysilicon manufacturer Hemlock Semiconductor has filed a US$737 million lawsuit against Green Energy Technology (GET) over an alleged breach of a long-term supply agreement.  

Hemlock claims GET, a Taiwan-based wafer manufacturer, defaulted on a down payment relating to a contract the two companies agreed in 2011 and failed to place orders it had committed to under the same deal.

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

According to court papers seen by PV Tech, Hemlock Semiconducter agreed to supply GET with polysilicon manufactured at its plant in Michigan, US, up to 2020.

In return GET agreed to pay a US$81.5 million advance payment in installments. But after making its first payment, Hemlock alleges GET failed to make six subsequent monthly installments, amounting to US$46,047,500 – claims Hemlock says GET later acknowledged in correspondence.

Hemlock claims GET also defaulted on an installment in January 2013 worth US$16.3 million.

In addition to failing to meet its advance payment obligations, Hemlock maintains GET failed to order and pay for certain quantities of product it had agreed to purchase in 2013.

As a result Hemlock terminated its supply agreement with GET on 13 August, demanding payment of all amounts under the contract, totalling US$737,235,429.17.

In its lawsuit against GET with a circuit court in Saginaw County, Michigan on 14 August, Hemlock is seeking damages not less than US$62,347,500.

PV Tech was unable to reach GET for comment. Earlier this year GET reported that its wafer production utilisation was running at 95% capacity.

Read Next

November 10, 2026
Electricity exports have generated US$500 million in revenue for Türkiye since the beginning of 2025, according to think tank Ember.
Sponsored
November 10, 2026
Voltage Energy's EBOS portfolio helps EPCs and developers optimise power collection, material use and installation efficiency with greater design flexibility.
November 10, 2026
Module manufacturer Heliene and perovskite solar company Caelux have started commercial-scale production of a hybrid-tandem solar module for the US market.
November 10, 2026
Qcells has passed all evaluation categories in module reliability tests conducted by Kiwa PVEL and the Renewable Energy Test Center (RETC) for US-made solar modules.
November 10, 2026
Proposed legislation that could unlock gigawatts of solar is progressing through the US Congress but faces increased resistance from campaign groups concerned it undermines environmental protections.
November 10, 2026
Solar equipment manufacturer Ecoprogetti has announced that it has deployed a solar PV module recycling plant in Sale, northern Italy.

Upcoming Events

Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye