In April 2021, which of the following countries announced to send 40 metric tonnes of liquid oxygen to Assam?

The correct answer is Bhutan : Bhutan will supply liquid oxygen to India to help tide over the health crisis posed by the raging second wave of the coronavirus pandemic. Daily, 40 metric tonnes of liquid oxygen will be exported to Assam using cryogenic tankers. The liquid oxygen will be produced at a new plant set up at the Motanga Industrial Estate in Samdrup Jongkhar district. The plant has a domestic investment of 51% by Bhutanese company SD Cryogenics Gases Private Limited and Foreign Direct Investment of 49% by Assam-based Meghalaya Oxygen Private Limited.