The NGV bus purchase plan would benefit both commuters and the BMTA itself. Without NGV buses running on the roads, commuters are suffering from a shortage of buses because at least 300 ageing buses are taken off the streets for maintenance every day. With the cheaper cost of natural gas, the NGV buses could help the BMTA save about 1.7 billion baht on costly diesel fuel and maintenance, which would eventually halve its loss. It was later revived by the Abhisit Vejjajiva administration in 2009 which initially tweaked it into a plan to hire 4,000 NGV buses, later amended to 1,757 buses. First, the Customers Department detected false tax declarations by Super Zara Co, which handled imports of 489 buses for Bestlin.
Source: Bangkok Post April 05, 2017 21:33 UTC