Costa Rica's public works and transport ministry (MOPT) awarded a contract to upgrade and widen a 23.8km highway stretch connecting the localities of Barranca and San Gerardo de Chomes in Puntarenas province.
Power Construction Corporation of China (PowerChina) won the US$103mn contract, beating offers from seven other bidders.
The state-run Chinese company will be responsible for widening the road from two to four lanes, as well as a general upgrade and repairing bridges.
MOPT will now start negotiations to finalize the contract, while works are expected to begin in the first quarter of next year, the ministry said in a release.
The work forms part of a larger initiative to upgrade the highway connecting Cañas and Barranca involving three contracts: one for the 20.1km Cañas-Limonal section, a 23.8km stretch connecting Limonal to San Gerardo, and the one from San Gerardo to Barranca.
The contract for the first section was awarded to a consortium comprising Spanish firm Azvi and local company Grupo Orosi in July, while the one for the second stretch has yet to be awarded.