欧盟在2014年10月收到了一项“反对声明”，该声明担心霍尼维尔和杜邦公司合作会限制制冷剂的利用和发展，杜邦公司的产品目前在科慕公司品牌下。

当时，欧盟委员会认为这两家公司从2010左右达成一系列协议开发和生产R1234yf，他们均为独立的制冷剂生产商。

因为R1234yf具有极低的GWP值，能够达到欧盟的MAC(汽车空调)指令设定的标准，因此它被认为是非常重要且唯一的可商业化应用的产品。欧盟根据原告和第三利益方所述，详细的评估这些证据和反馈信息，决定停止反垄断调查。

“此外，作为原告的阿科玛、墨西哥化学和欧盟汽车制造商协会分别于2017年4月12、18和7月6日撤回了他们的诉送，‘欧盟称，”并会继续密切关注这类化学品的市场发展，包括R1234yf制冷剂。

英文原文如下：

EC closes Honeywell and DuPont R1234yf antitrust investigation

26 October, 2017

The European Commission has closed an antitrust investigation over cooperation between Honeywell and DuPont to produce the refrigerant R1234yf for use in vehicles.

A ‘Statement of Objections’ was adopted by the EC in October 2014 against Honeywell and DuPont, which now operates under the Chemours brand, over concerns that the availability and development of the refrigerant may be limited by any collaboration.

The commission argued at the time that both companies, which were the sole producers of the refrigerant, had entered into a series of agreements from 2010 around producing and developing R1234yf.

At the time the refrigerant was deemed as important due to its status as the only commercially available product of its kind with a sufficiently low global warming potential (GWP) to meet the EU’s MAC Directive that sets out standards for air conditioning systems in vehicles.A decision to close the antitrust investigation was taken by the commission based on what it said was careful assessment of evidence and feedback from both claimants and interested third parties.

“Furthermore, on 12 April, 18 April and 6 July 2017 respectively, the three complainants in this case, Arkema, Mexichem and the European Automobile Manufacturers Association (ACEA), withdrew their complaints,” the EC said. “The Commission will continue to monitor closely the chemicals market, including for the R1234yf refrigerant.