O Quy Ho pass is seen in Vietnam’s northern Lai FILE PHOTO: O Quy Ho pass is seen in Vietnam’s northern Lai Chau province, October 18, 2015. O Quy Ho is one of four passes in Vietnam connecting Lao Cai province to Lai Chau province. REUTERS/Kham Post navigation Previous: Vietnam aims to raise annual raw rare earths output to 2 million t/yr by 2030