クラリアントとハンツマンは対等合併交渉を進めていたが、両社はこれを撤回した。ヘッジファンドWhite Tale Holdingsがクラリアント社の20%超の株式を取得し合併に反対した為、株主の3分の2の合意を得られないリスクが発生した為としている。
クラリアント社によれば、9月19日にはホワイトテールがスイス証券取引所に15%の株式を取得したと報告。
Muttenz, September 19, 2017 – Clariant, a world leader in specialty chemicals, has announced today that White Tale Holdings has increased its stake in excess of 15 percent. This follows earlier mandatory notifications by White Tale Holdings to the Swiss Stock Exchange (SIX) regarding their holdings.
https://www.clariant.com/ja-JP/Corporate/News/2017/09/White-Tale-Holdings-increased-stake-above-15-percent

その後ホワイトテール10月27日までに20%の株式を取得し、同日に合弁を白紙撤回するとの発表があった。
Muttenz, October 27, 2017 – Clariant, a world leader in specialty chemicals, confirms that White Tale Holdings has increased its stake in Clariant in excess of 20%. This follows earlier mandatory notifications by White Tale Holdings to the Swiss Stock Exchange (SIX) regarding its holdings.
https://www.clariant.com/ja-JP/Corporate/News/2017/10/White-Tale-Holdings-increased-stake-to-above-20

Muttenz, October 27, 2017 – Clariant (SIX: CLN) and Huntsman Corporation (NYSE: HUN) today jointly announced that they have mutually terminated their proposed merger of equals. The decision was unanimously approved by the Boards of Directors of Clariant and Huntsman.
https://www.clariant.com/ja-JP/Corporate/News/2017/10/Clariant-and-Huntsman-jointly-decided-to-abandon-planned-Merger-of-Equals

これによる違約手数料は双方に発生しないとしている。
The Termination Agreement foresees no payment of a break fee on either side. Clariant, therefore, avoids paying both the USD 210m deal breakage fee and the USD 60m EGM non-approval fee as foreseen in the Merger Agreement.

クラリアントとハンツマンの合弁が実現していた場合、単純合算で売上高132億ドル、EBITDA23億ドル規模の巨大企業が誕生していた。

ソース：
https://www.clariant.com/ja-JP/Corporate/News/2017/10/Clariant-and-Huntsman-jointly-decided-to-abandon-planned-Merger-of-Equals