物质的供应商（既是该物质的制造商又是其他人生产的相同物质的分销商）是否必须在 SDS 中提及完整的注册号，还是可以使用截断号？

物质的供应商（既是该物质的制造商又是其他人生产的相同物质的分销商）是否必须在 SDS 中提及完整的注册号，还是可以使用截断号？

Must the supplier of a substance, who is both a manufacturer of the substance and a distributor of the same substance manufactured by others, mention the full registration number in the SDS, or can they use the truncated number?

在这种情况下，制造商需要在安全数据表中注明其完整的注册号（后四位数字），因为制造商不允许截断注册号。但是，如果制造商同时是其他制造商生产的相同物质的分销商，则当其供应商的注册号第一部分与其自身注册号第一部分不同时，也应注明其供应商的截断注册号，即如果其供应商之一或制造商自身未在联合提交的注册信息中注册。

In this case, manufacturers need to mention their full registration number (with the last four digits) in the SDS, because a manufacturer is not allowed to truncate it. However, being at the same time a distributor of the same substance manufactured by others, they should also indicate the truncated registration number of their suppliers whenever its first part differs from the first part of their own registration number, i.e. if one of their suppliers or they themselves have not registered in the context of the joint submission.