Did you notice who wrote that...? It was written by none other than Edward Niedermeyer, who co-founded the DailyKanban with Bertel "I'll eat my hat" Schmitt. Niedermeyer is also a "truther" at TheTruthAboutCars. Niedermeyer has written a number of hostile articles about Tesla, GM and Volt. Anything he writes about GM should be read skeptically.
He notes in this article that GM will be importing the CT6 hybrid to the US from China. What he doesn't mention is that GM is estimating US sales at a mere 1,000 per year. Also not mentioned is that the key hybrid parts of the car are actually made in the US and exported to China where most of the CT6 hybrids that are built are expected to be sold. The battery cells will be made at LG Chem's Michigan plant, the pack is assembled at GM's battery pack factory (where the Volt packs are built). The CT6 hybrid pack is a slightly repackaged Volt pack. GM is also making the electric motors in one its Maryland factories. I don't know if the entire hybrid transmission is being assembled in the US or if that is happening in China. I suspect the CT6 hybrid transmission is going to be used in future, as yet unannounced, hybrid trucks and larger vehicles in the US market so it's my guess that the entire CT6 transmission will be built in the US. The technical details of the RWD CT6 hybrid transmission are not yet known but it seems likely to be a modestly updated 2008-era Two-Mode.
It is a little weird that GM is shipping these hybrid components to China, dropping them into a CT6 built at a Factory there and then shipping 1,000 of them back to the US. Why not just drop the hybrid parts into the US built CT6, which is being assembled at the same Detroit factory that bulds the Volt and ELR? Maybe there are weird contract or tariff/tax advantages. If there is strong unexpected US demand for the hybrid CT6 I expect GM can quickly start building them in Detroit if they want to.
Generally, it's not surprising that GM is focusing most of their Asian operations in China. It really is a huge market and GM is doing very well there. I recently visited China and the cars on big city streets are almost indistinguishable from what you would see in the US. The cars are mostly GM or VW brand models but I saw Tesla and French cars as well as some Chinese domestic brands.