Officially (from an SEC filing perspective), CDBH never specified that Daqing Moringa was the RM candidate. However, nearly every piece of information associated with Daqing Moringa made a pretty clear indication that Daqing Moringa was intending to reverse merge into the CDBH shell. Among the things that made it a pretty logical guess was: the use of the name/symbol in Chinese newspaper articles, the use of the name/symbol on Chinese government websites, the use of the name/symbol in Daqing Moringa job postings, the use of the name/symbol on a newly-established English website for Daqing Moringa, and the potential financing-related involvement of a major Chinese institutional investor which used the name/symbol on its website.
So clearly there were a number of people in China (ranging from Daqing Moringa itself to third-party institutional investors) who believed a RM between Daqing Moringa and CDBH was basically a done deal.