. "If they felt the Sanan deal materially eroded the benefit of their bargain with Poet, we would have seen far more fireworks."

Or perhaps China Prosper Group still has big plans for DL and the 3rd party negotiations (going back to February), gave them room to weasel  and Poet renegotiated since Sanan is exclusive in China.  The trade off seems material.

"Following closing, DenseLight’s operation in Singapore is expected to be expanded, both to support the preferred supply and strategic cooperation agreements negotiated with POET as part of the Share Sale Agreement and to serve an expanded market presence in China. Future plans include the construction of a high-volume manufacturing plant in Suzhou, expansion of sales and marketing efforts in China and elsewhere, and a potential public listing for DL Shanghai in China."

"The JV will have the exclusive rights to assemble and sell 100G/200G Optical Engines globally and exclusive rights to assemble and sell 400G Optical Engines within the Greater China territory (PRC, Taiwan, Hong Kong and Macau) in the fields of data and telecommunications applications."