Westport Fuel Systems Inc (WPRT)

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Not much pop. growth in China now but their rise in economic level will necessarily be followed by growing transportation needs.
As cheap NG becomes more widely available, it's probable it's adaption becomes much more popular.
Quatar, with it's vast untapped NG reserves, has built a huge LNG facility and is building the fleet to deliver it anywhere. They can extract and sell NG much cheaper than anyone.