必和必拓（ASX:BHP）在智利埃斯孔迪达铜矿的主管工会周二表示，由于调解新集体劳动合同的努力失败，他们将于周三开始罢工。
The supervisors’ union at BHP’s (ASX:BHP) Escondida copper mine in Chile said they will begin a strike on Wednesday after mediation efforts to tie up a new collective labor contract had failed, the union said on Tuesday.
世界上最大铜矿床的罢工威胁着收紧全球供应，并一直在支撑铜价。
The strike at the world’s largest copper deposit threatens to tighten global supply and has been supporting copper prices.
工会表示，他们提出了一项最终方案，纳入了公司90%的提案以及工会的关键诉求，包括加薪和生产奖金。
The union said it made a final offer incorporating 90% of company proposals plus key union demands including salary increases and production bonuses.
工会在周二下午晚些时候的声明中表示，必和必拓拒绝回应并终止了调解谈判。
BHP declined to respond and ended mediation talks, the union said in a statement late on Tuesday afternoon.
工会表示，公司要求工人放弃基本福利，并坚持将私人生物特征数据与第三方共享。
The union said the company demanded workers give up essential benefits and insisted on sharing private biometric data with third parties.
“此次罢工的责任完全在于公司及其谈判委员会，”工会在声明中表示。
“The responsibility for this strike lies solely with the company and its negotiating committee,” the union said in its statement.
主管工会与埃斯孔迪达已就合同谈判陷入僵局数周，并曾威胁若谈判失败将发动罢工。矿方未能立即回应置评请求。
The supervisors’ union and Escondida have been embroiled in fraught contract negotiations for several weeks, and had been threatening a strike if talks were to fail. The mine did not immediately respond to a request for comment. Main Image: Mitsubishi Corp.