In the Vibrant Gujarat Global Summit (VGGS) held in 2019, a Memorandum of Understanding (MoU) worth Rs 3,000 crore was signed for a bio-refinery in the Dahej Petroleum, Chemicals and Petrochemicals Investment Region (PCPIR), followed by a Rs 7,000 crore MoU in 2022 for chemical manufacturing in Dahej, officials said.