The preferential trade agreement was signed in 2010 to reduce tariffs and barriers to trade between Taiwan and China. After the ECFA expired on Saturday, September 12, Taiwanese producers feared that there would be a negative effect if it ended. A legislative yuan meeting was held on 8 July 2010. THE DOCUP insisted that the ECFA agreement be reviewed clause by article. This request was rejected by the KMT caucus.  Then a six-minute fight broke out among the legislators. Wang Jin-pyng sat on the podium, surrounded by other KMT legislators. Liu Chien-kuo, Su Chen-ching (蘇震) and Kuo Wen-chen (郭玟) tried to reach him and failed. Lawmakers threw themselves at each other with paper, water and garbage. KMT MP Wu Yu-sheng (吳育) was struck in the head by a clock. He had to be transferred to the University of Taiwan hospital.   A number of other people were involved in the brawl. DPP President Tsai Ing-wen was accused of the conflict by two KMT MPs.
 The Government of the People`s Republic of China is using its influence over neighbouring economic powers to prevent them from signing free trade agreements with the Republic of China (“Taiwan”), which asserts that the ROC has been abolished and that Taiwan is therefore part of its territory.   Instead, Kuomintang-led Taipei was motivated to sign the ECFA with mainland China, in part in the hope that the People`s Republic of China, as soon as it has this agreement, will stop pressuring other countries to avoid such agreements with Taiwan and counteract the negative consequences of the Chinese free trade agreement with China.  ECFA has been compared to the closer economic partnership agreements with the Hong Kong and Macao Special Administrative Regions in mainland China.  The negotiation process took place in several cycles. As part of the 4th round of discussions on SEF-ARATS, held in December 2009, substantial but informal discussions were initially held on the ECFA. During this period, delegates for China and Taiwan set the framework for the first round of ECFA discussions held in Beijing on January 26, 2010. Kao Koong-lian, Secretary General and Vice-President of the Straits Exchange Foundation (Sef), led the 13-member Taiwan delegation, while Zheng Lizhong, Vice President of the Association for Relations Across the Taiwan Straits (ARATS), represented China`s interests.  The subsequent ECFA discussions took place in Taipei on 31 March 2010 and in Beijing on 13 June 2010.
  The final agreement was signed during the 5th round of the SEF-ARATS talks on 29 June 2010 in Chongqing.   Chiang Pin-kung, president of the Taiwanese SEF, represented Taiwan.   Chen Yunlin, the president of ARATS, represented mainland China.   Taiwan`s executive yuan approved the ECFA on July 2, 2010 and the Legislative Yuan (Parliament) approved the agreement on August 17, meaning that the agreement became law on January 1, 2011.  The ECFA came into force on September 12, 2010.   Although the Taiwanese government has downplayed the impact of the ECFA cessation by stating that the impact on the country`s trade revenues would be less than 5%, proponents of the pact believe it is essential to ensure Taiwan`s inclusion in economic dialogues in the region, the UDN said.