From your link, the message that Taiwan sent to the WHO:

""News sources indicate at least seven atypical pneumonia cases were reported in Wuhan, China". It also said while China's health authorities replied to the media that the cases were believed not to be SARS, "they have been isolated for treatment"."

Furthermore, from the picture: "I would gladly appreciate if you have relevant information to share with us."

So Taiwanese authorities read publicly available news sources about seven atypical pneumonia cases in Wuhan, and because the media reports said the cases were being isolated for treatment, they asked the WHO if they had any additional information.

Unless I'm reading it wrong, this does not mean that Taiwan had any additional knowledge other than what they had read from publicly available information.

> Unless I'm reading it wrong, this does not mean that Taiwan had any additional knowledge other than what they had read from publicly available information.

You are reading it wrong. Taiwan also relayed that PRC doctors were talking to ROC doctors, letting them know that the staff at hospitals were being infected with a new respiratory illness, which would indicate human-to-human spread. They told the WHO about this in December, the WHO continued to contend that there was "no evidence" to suggest human to human spread.

> These are precisely the sorts of conversations people should be having.

Indeed.