TAIPEI, Sept 26 (Reuters) - The situation in the Taiwan Strait is "complex and grim", Chinese President Xi Jinping wrote in a congratulatory letter on Sunday to the newly elected leader of Taiwan's main opposition party, who has pledged to renew talks with Beijing.
Taiwan's Kuomintang (KMT) elected as their leader on Saturday former New Taipei City mayor Eric Chu, who said he would rekindle stalled high-level contacts with China's ruling Communist Party.
China claims Taiwan as its own territory and has stepped up military and political pressure to force the democratically ruled island to accept Chinese sovereignty, even though most Taiwanese have shown no interest in being governed by Beijing.
In Xi's letter, a copy of which was released by the KMT, he said both parties had had "good interactions" based on their joint opposition to Taiwan independence.
"At present, the situation in the Taiwan Strait is complex and grim. All the sons and daughters of the Chinese nation must work together with one heart and go forward together," wrote Xi, who is also head of the Communist Party.
He expressed hope that both parties could cooperate on "seeking peace in the Taiwan Strait, seeking national reunification and seeking national revitalisation".
Chu, who badly lost the 2016 presidential election to current President Tsai Ing-wen, responded to Xi that people on both sides of the Taiwan Strait were "all the children of the Yellow Emperor" - in other words, all Han Chinese.
Chu blamed Tsai's Democratic Progressive Party (DPP) for tensions with Beijing after pursuing anti-China policies.
Chu, who met Xi in China in 2015, said he hoped to "seek common ground and respect differences, increase mutual trust and geniality, strengthen exchanges and cooperation so as to allow the continued peaceful development of cross-strait relations".
Under outgoing KMT leader Johnny Chiang's 17-month tenure, high-level contacts with China stalled amid military tensions and suspicion in Beijing the party was not sufficiently committed to the idea Taiwan was part of "one China".
As well as losing the 2016 polls, the KMT were trounced in elections last year after failing to shake DPP accusations they were Beijing's lackeys.
China refuses to talk to Tsai, calling her a separatist. She says Taiwan is already an independent country called the Republic of China, the island's formal name, and that only Taiwan's people have the right to decide their own future.
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