India, March 17 -- Reliance Industries Ltd. has secured a landmark $3 billion deal with South Korea's Samsung C&T Corp. to supply green ammonia, marking a significant milestone in billionaire Mukesh Ambani's pivot towards renewable energy.

The binding, long-term supply and purchase agreement spans a 15-year period, with deliveries slated to commence in the second half of the fiscal year ending March 2029. The Reliance-Samsung deal, one of the largest of its kind globally, signals India's emergence as a major exporter of green fuels and underscores Reliance's ambition to dominate the clean energy value chain.

"This partnership marks an important step in India's clean-energy journey," said Anant Ambani, executive director of Reliance Indu...