Taiwan has been an ally of the US since the 1949 and nothing has changed. The only difference is the top leaders since the PRC was recognized didn't speak to Taiwan direct.
China and Hong Kong are main export partners of Taiwan
http://www.tradingeconomics.com/taiwan/exports
Exports from Taiwan jumped 9.4 percent year-on-year to $26.75 billion in October of 2016, the biggest gain since August of 2014, mainly boosted by sales of parts of electronic products (+15.3 percent); information, communication and audio-video products (+18.2 percent); base metals and articles of base metals (+14.8 percent). Among trading partners, all major markets showed rising demand, with shipments increasing the most to China and Hong Kong (+14.9 percent), ASEAN countries (+13.2 percent), US (+7.8 percent), Europe (+6.8 percent) and Japan (+3.5 percent). Exports in Taiwan averaged 12282.24 USD Million from 1981 until 2016, reaching an all time high of 28585.12 USD Million in August of 2014 and a record low of 1406.50 USD Million in February of 1981.
China however considers Taiwan as one of its provinces and has legislation in place for running the province as a semi-autonomous region like Hong Kong. The laws call for one country two systems but based on the Hong Kong systems it would be more like two countries one system.
Taiwanese have also invested heavily in China brining capital and expertise. It's a good place for expats from the West if they can secure work contracts there.
Occasionally there's a bit of sabre rattling but I don't think any loose shots from Trump will have much effect on the current situation where China and Taiwan are under endless negotiations. Taiwan negotiates the Chinese way which is essentially to stall and put things off or simply prolong negotiations.
China cannot now afford to lose its exports to the US and I think this will involve some sabre rattling. Ideally Taiwan would be a separate state from China and call itself that but this is something the PRC could object to a bit strongly to. However with economic stagnation there at the moment and strict laws that make it difficult to PRC employers to dismiss long serving staff there will just be a few loud exchanges. (I think).
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Uh oh:
http://www.msn.com/en-us/news/world...ne-call/ar-AAl6cid?li=BBmkt5R&ocid=spartanntp
I'm obviously no fan of Trumpster, but I have to say that this doesn't seem such a big deal to me. The freely elected president of Taiwan called Trump to offer congratulations. He called her back. For the Chinese to call this a "highly provocative action, of historic proportions" is a little teenager dramatic to me.
I don't quite get it. She called him. He missed the call. He called her back. Is it the return phone call itself? I'm trying to eliminate that possibility since phone calls apparently aren't taboo--since she called first. Because he's a man and she isn't? Because his call was a return call and hers wasn't? Was there something about the content of the call? The fact he didn't answer when first called? I'm trying to get at the heart of the problem. I'm not up to date on proper etiquette with the Chinese.
Per Chau en Lau the etiquette is
'Diplomacy is a continuation of War by other means.'