Singapore's top commercial court on Wednesday rejected Tata Power Co.'s challenge to a $490 million arbitration award. The ruling means India's largest non-state power producer must pay investor Kleros Capital Partners over a failed joint bid for a Russian coal asset. With accrued interest, the total amount due now exceeds $640 million.[squirepattonboggs]
The Dispute's Origins
The long-running dispute dates back to 2013. Kleros Capital Partners approached Tata Power with a proposal to jointly bid for the Krutogorovo coal deposit in Russia.Kleros estimated the deposit held reserves worth about $1.1 billion.The two companies signed a non-disclosure agreement (NDA) in September 2013, valid for four years.This agreement allowed them to share confidential information about the project.[businessworld+6]
The partnership began to sour in 2015. Disagreements arose over who would lead the bid and the ownership structure of the proposed project.The collaboration ended in 2016.In 2017, a new auction for a mining license at the same Russian coal deposit took place. Kleros did not participate.Tata Power, through a Russian subsidiary, submitted an independent bid and secured the license.The company later surrendered the license, deeming the project not commercially viable.[businessworld+9]
Arbitration and Initial Award
Kleros Capital subsequently initiated arbitration proceedings. It alleged that Tata Power misused confidential geological and economic data.Kleros claimed Tata Power breached the NDA and acted in bad faith to exclude Kleros from the project.The dispute went to the Singapore International Arbitration Centre (SIAC).[businessworld+4]
In September 2023, the arbitral tribunal unanimously found Tata Power liable. It ruled that Tata Power misused confidential information, circumvented Kleros, and breached its duty of good faith.On July 1, 2025, the tribunal issued its award on damages.A majority of the arbitrators awarded Kleros $490.32 million.This amount included simple interest of 5.33% per annum, calculated from November 30, 2020, until payment.The tribunal also ordered Tata Power to pay Kleros's legal costs.[iclg+9]
Tata Power's Court Challenge Rejected
Tata Power challenged the arbitration award before the Singapore International Commercial Court (SICC).The company disputed the amount of damages.It also argued that the majority arbitral order breached natural justice.Tata Power further claimed that two arbitrators were biased due to links with Kleros's third-party funder.[businessworld+6]
The SICC, on August 26, 2026, dismissed all of Tata Power's applications.The court upheld the arbitral award in its entirety.It rejected Tata Power's arguments that the tribunal failed to decide essential issues or that there was any apparent bias.The court's decision reinforces the immediate, final, and binding nature of the awards.[iclg+5]
Financial Impact and Next Steps
As a result of the SICC's decision, Tata Power must immediately pay Kleros.The total sum now exceeds $640 million, including the principal damages and accrued interest.Interest continues to accrue at approximately $71,600 every day.[squirepattonboggs+2]
Following the news, Tata Power's share price fell over 4% on Thursday.This reaction shows investor concern over the financial implications.In an exchange filing on August 26, Tata Power stated its intent to challenge this latest decision.[business-standard+4]
The company still has options, including further legal challenges or negotiating a settlement with Kleros.However, the SICC's ruling marks a significant setback for Tata Power in this long-running dispute.[scribd+1]





