This is one of the first two projects in Vietnam to use domestically manufactured steel pipe towers. It marks a significant turning point in design capabilities and the supply of new products by PC1, laying the foundation for EVN to use this type of tower for a series of subsequent projects, including the 500kV Circuit 3 Transmission Line. PC1 supplied 560 tons of steel lattice towers and steel pipe towers for the 220kV switchyard of the BIM solar power plant in Ninh Thuan Province