Total value of cross-border business hits 62.6 billion yuan in H1, up 126% YoYNANNING — Soon after the Youyiguan border crossing in South China's Guangxi Zhuang autonomous region opened for Customs clearance, a procession of trucks carrying goods — including fruits, electronic appliances and agricultural products — from the Association of Southeast Asian Nations began streaming into the world's second-largest economy.