The border gate pair is expected to facilitate exchange, and development cooperation between Son La and Houaphanh provinces, thereby improving living standards of local residents, and further strengthening their solidarity. It will help the provinces to integrate quickly, safely, and comprehensively into ASEAN and the international community, thereby actively strengthening and fostering the special friendship between the two provinces as well as the two countries. The Long Sap border gate was established on March 1, 1990. It is located in Long Sap commune, Moc Chau district, Son La province, while its Lao counterpart in Pa Hang hamlet, Sop Bau district, Houaphanh province./.