I reckon the 3 -6 months indicates the South Korean mob have...

I reckon the 3 -6 months indicates the South Korean mob have 'áccepted' the product, and now it's down to specific formulation work. When such outfits start mentioning things like "grout", I reckon we're beyond 'acceptance'testing, and into the product range integration phase. If they were still in the evaluation phase, a number of the various tests alone take longer than 3 - 6 months.

IIRC, not far back Eden had to head back to the US with samples of Korean cement/concrete input materials, because they differed from those used in (e.g.) the US, and prove to the Koreans that E'crete would work with that different combo of inputs.

I thought that looked critical at the time, and today's announcement suggests that was the case.