中文内容由 Google Cloud Translation 自动生成，仅供参考；请以英文原文为准。问答资料来自欧盟化学品管理局（ECHA）官方网站。
答案（中文）
可以设想几种情况：需缴纳基本费用，涵盖一种物质和一种用途。每增加一种用途和一种物质，需缴纳额外费用。但新增申请人无需缴纳额外费用。但是，基本费用和每种用途和每种物质的额外费用取决于申请方中最大公司的规模——也就是说，如果联合申请中公司规模不同，则将按最高适用费用收取。例如，如果四方提交的申请涉及两种物质、三种用途，则相关费用为：适用于最大申请人的基础费用 + 三项额外申请人费用 + 适用于最大申请人的两项额外用途费用 + 适用于最大申请人的一项额外物质费用。下表列出了单个物质申请费用的四个计算示例，其中（最大）申请人是一家大型公司。表格：费用取决于用途数量，而非申请人。同一申请中可以涵盖多种物质的可能性仅限于符合 REACH 法规附件 XI 第 1(5) 节中物质组定义的物质。在所有其他情况下，必须为每种物质提交单独的申请。更多信息：ECHA 费用计算器：ECHA 提供的工具，用于估算与特定授权申请相关的可能费用金额。关于 REACH 费用法规：请参阅 REACH 法规页面和 2018 年 6 月 22 日委员会实施条例 (EU) 2018/895 上的更多信息。
Answer (EN)
Several scenarios can be envisaged: A base fee is payable, which covers one substance and one use. An additional fee applies for each additional use and substance. No additional fee for additional applicant(s) is levied, though. However, the levels of the base fee and of the additional fees per use and substance depend on the size of the largest company that is party to the application - .i.e. if in joint applications companies are of a different size, the highest applicable fee will be levied. For example, in the case of an application submitted by four parties with ten three uses and two substances in total, the relevant fee will be the base fee applicable to the largest applicant + three additional applicant fees + nine two additional use fees applicable to the largest applicant + one additional substance fee applicable to the largest applicant.The table below shows four examples of calculated fee for applications for a single substance where the (largest) applicant is a large company.Table: Fees depend on the number of uses, not applicantsThe possibility to cover more than one substance in the same application is limited to substances that meet the definition of a group of substances as defined in Section 1(5) of Annex XI of the REACH Regulation. In all other cases, a separate application must be submitted for each substance.Further information: ECHA Fee Calculator: a tool provided by ECHA to estimate the possible amount of a fee related to a given application for authorisation.On the REACH Fee regulation: see more information on REACH Legislation -page and Commission Implementing Regulation (EU) 2018/895 of 22 June 2018.