China has provided a $900m loan to Costa Rica to support the expansion and remodeling of the Puerto Limon oil refinery.
The announcement was made during the official visit by Chinese President Xi Jinping to the Central American country.
Costa Rica and China have signed nine agreements, totaling $1.5bn, to support various infrastructure and energy projects, reported The Associated Press.
The Puerto oil refinery located in the area of Limon have an installed capacity of 18,000 barrels per day and produces diesel, naphta, and bunker oil.
The Costa Rican government is a share holder in the refinery owned by Refinadora Costarricense de Petróleo (RECOPE).
The funds are expected to expand, remodel and increase the capacity of the refinery to 65,000 barrels a day, with the Chinese sharing in the profits.