The Chinese federal government alerted Taiwan on Wednesday that the passage of a proposed new law governing relations in between the 2 could seriously damage the basis for talks, which Beijing opposed any obstacles to developing ties.

China has looked on with suspicion at Taiwan since Tsai Ing-wen and her pro-independence Democratic Progressive Party (DPP) won presidential and parliamentary elections in January on the back of a wave of anti-China belief.

In 2014, numerous students occupied Taiwan’s parliament for weeks in protests nicknamed the Sunflower Movement, requiring more openness and fearful of China’s growing financial and political impact on the democratic island.

The protests over the 2013 Cross-Strait Service Trade Agreement, which intended to open up investment from both sides in industries such as banking, health care, and tourist, were the biggest display of anti-China sentiment in Taiwan in years.

The DPP is proposing Taiwan’s parliament first passes a so-called cross-Taiwan Strait supervision law before it will consider agreeing to the trade pact.

China is fretted that the law would stymie future contracts with Taiwan.

Inquired about the law, a representative for China’s Taiwan Affairs Office stated the basis for talks between the two sides need to not be harmed.

“Anything that damages the basis for consultations and settlements in between the 2 sides of the strait, interferes in or hinders pertinent progress or puts up man-made blocks on the advancement of ties, we will resolutely oppose,” representative An Fengshan stated at a routine briefing.

He did not elaborate.

The trade deal has stalled in Taiwan’s parliament, although the manner in which the self-ruled island progresses in the current February-to-May session will be viewed as an indication of how Tsai will steer Taiwan-China ties.

China’s trade minister last month prompted Taiwan to pass the trade pact.

China thinks about Taiwan a wayward province, to be brought under its control by force if essential. Defeated Nationalist forces got away to the island in 1949 after the Chinese civil war.