The director of Taiwan's National Security Bureau said China's ruling Communist Party is "trapped inside a security dilemma."
The United States is not legally bound to defend Taiwan in the event of an attack by China and has maintained "strategic ambiguity" for over 40 years.
"This hostile move violates international trade norms," said Taiwan's foreign minister, noting China wants to join the CPTPP trade bloc.
"The Chinese mainland will have to take severe economic and military measures to combat the arrogance of the U.S. and the island of Taiwan."
A Taiwanese official says the ruling party did not hesitate when invited to hold unprecedented security talks with Japan to discuss mutual concerns about China.
"We are not allocating these doses, or delivering these doses, based on political or economic conditions. We are donating these vaccines with the singular objective of saving lives," an administration official said.
The attack was traced back to the Taiwan organized crime syndicate Bamboo Union, which is one of the world's most dangerous gangs.
Beijing and Washington vie for influence in the Asia-Pacific as China presses strategic regional goals.
"I'm proud of yesterday's Golden Horse Awards – it highlighted how Taiwan is different from China," President Tsai Ing-Wen wrote on her Facebook page.
The constitutional court gave legislators two years to change the civil law to allow same-sex marriage.
His one-day visit comes amid growing international concern over rising tensions in area.
The U.S. wants to see issues between the two dealt with peacefully, no matter who wins Saturday's polls.
Chan is close to China's communist party and has called Taiwanese democracy "a joke."
The incident was captured on CCTV and has been released by the gallery.
More than 500 people were injured and one person was killed in the blaze.
As many as 28 people appeared to have survived the crash after the plane crashed.