一家与伦敦金属交易所挂钩的定价机构旨在根据实际交易发布可持续金属的溢价，但在说服市场参与者分享敏感交易信息方面遇到了困难。
A London Metal Exchange-linked pricing agency that aimed to publish premiums for sustainable metals based on actual trades has struggled to convince market participants to share sensitive trading information.
迪拜的商品定价与分析有限公司（Commodity Pricing and Analysis Ltd）在过去几周发布的初始铝和铜可持续金属溢价，是基于与市场参与者的对话，而非交易，尽管该倡议一年前宣布时曾宣称将基于实际交易。
Initial premiums for sustainable metals published by Dubai-based Commodity Pricing and Analysis Ltd in recent weeks for aluminium and copper were based on conversations with market participants, not trades as billed when the initiative was announced a year ago.
伦敦金属交易所（LME）是全球历史最悠久、规模最大的工业金属交易场所，一直抵制一些矿业公司施加的压力，即为可持续产品设立独立的期货合约，称这将稀释流动性。
The LME, the world's oldest and largest venue for industrial metals trading, has resisted pressure from some miners to set up separate futures for sustainable products, saying it would dilute liquidity.
相反，它一年前宣布与在线交易平台Metalshub合作，称该平台将向一个独立的定价机构提供交易数据，以制定可持续金属的稳健溢价。
Instead, it announced a collaboration a year ago with online trading platform Metalshub, which it said would provide trading data to an independent price-setting agency to create robust premiums for sustainable metals.
Metalshub告诉路透社，截至目前尚未提供任何交易数据，因为需要获得其客户的批准。
Metalshub told Reuters it had so far not provided any trading data because it needed the approval of its customers.
“我们最重要的任务是保持交易数据的保密性，”其董事总经理弗兰克·杰克尔（Frank Jackel）表示。
"The utmost importance for us is that we maintain confidentiality of the transactional data," its Managing Director Frank Jackel said.
CPAL董事会成员兼LME首席可持续发展官乔治娜·哈莱特（Georgina Hallett）告诉路透社，该机构希望未来能够获得Metalshub客户对交易价值的批准。
CPAL board member and LME Chief Sustainability Officer Georgina Hallett told Reuters the agency hoped to secure approval for traded values from Metalshub clients in the future.
“我们通过这种强有力的第三方透明平台所能获得的交易越多，溢价就越强，”哈莱特说。“但最终，这还是市场的选择。”CPAL和LME均由香港交易及结算所有（0388.HK）。
"The more transactions we can have through that kind of robust third-party transparent venue, the stronger the premiums," Hallett said. "Ultimately, though, it's the market's choice." Both CPAL and the LME are owned by Hong Kong Exchanges and Clearing (0388.HK).
CPAL的初步评估认为可持续铜不溢价，这在一些欧洲生产商中引发了争议，这些生产商确实以溢价出售绿色金属，并且认为新成立的机构对低碳铜的定义过于宽泛。
An initial assessment by CPAL that sustainable copper commands no premium has caused controversy among some European producers who do sell green metals at a premium, and who say the new group has too broad a definition of low-carbon copper.
CPAL于10月1日在LME Insight网站发布的首份可持续铜评估报告称，消费者不会为物理LME一级A金属在鹿特丹的通常溢价（每公吨130至180美元）支付更高的价格。溢价是LME期货价格之外的额外费用。
CPAL's first assessment of sustainable copper on October 1, published on the LME Insight website, said consumers would not pay a higher price over the usual premium for physical LME Grade A metal in Rotterdam of $130 to $180 per metric ton. Premiums are on top of the LME futures price.
一些欧洲冶炼厂表示，CPAL对可持续金属的定义不应使用每吨金属4吨碳排放，因为这是全球平均水平。
Some European smelters said that the CPAL definition of sustainable metal should not have used 4 tons of carbon emissions per ton of metal, since that is the global average.
奥地利冶炼厂蒙塔纳韦尔克布里克斯莱格正在提供每吨金属含0.63吨碳的铜，溢价为每吨398欧元（446美元），用于2027年。
Austrian smelter Montanwerke Brixlegg is offering copper with 0.63 tons of carbon per ton of metal for a premium of €398 ($446) a ton for 2027.
“将4吨作为定义，同时将由此产生的价格呈现为可持续金属的代表，实际上对最初的想法是有害的，”布里克斯莱格的一位官员对路透社表示。
"Using 4 tons as a definition while framing the resulting price as representative of sustainable metal is actually detrimental to the original idea," an official of Brixlegg told Reuters.
“该定义过于宽泛，无法准确反映真正的可持续细分市场。”哈莱特表示，由于低碳铜生产商的产出有限，CPAL决定从较高的CO2水平开始，以便让更多冶炼厂参与。
"The definition is too broad to accurately reflect the true sustainable niche." Hallett said that since there was limited output among producers of low-carbon copper, CPAL decided to start with a higher level of CO2 to allow more smelters to take part.
CPAL对可持续金属的定义包括一系列标准，不仅限于碳排放，还包括环境和劳工问题，她这样说道。
CPAL's definition of sustainable metals includes a wide range of criteria, including environmental and labour issues, not just carbon emissions, she said.
哈莱特表示，为了刺激更多交易数据，CPAL鼓励生产商将少量可持续金属定向至Metalshub，并同意披露交易价格。
Hallett said that in order to stimulate more trading data, CPAL has encouraged producers to direct small amounts of their sustainable metal to Metalshub and agree to disclose traded prices.
尽管起初遇到一些困难，CPAL旨在推出一系列可能包括关键矿物的金属价格，她补充道。
Despite initial hurdles, CPAL aims to roll out a wide range of metals prices that may include critical minerals, she added.
她表示，CPAL正在研讨为可持续锌和镍引入溢价，但拒绝给出明确时间表，称可能是在明年。
She said CPAL was working on introducing premium prices for sustainable zinc and nickel, but declined to give a firm timeline, saying it was likely next year.
已经有几个集团为低碳金属提供溢价，包括Fastmarkets，其基于市场情报的评估覆盖铜、铝、镍和钢。
Several groups already produce premiums for low-carbon metals, including Fastmarkets, whose assessments based on market intelligence cover copper, aluminium, nickel and steel.
Hallett 补充称，提供市场评论以及由 CPAL 计算的溢价的 LME Insight 网站目前是免费的，但未来可能会采用付费墙，以实现自给自足。
The LME Insight website, which provides market commentary as well as premium prices calculated by CPAL, is currently free, but will likely adopt a paywall in the future so it can become self-sustaining, Hallett added.