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如果我通过研磨从欧盟供应商处购买的非纳米物质来生成纳米物质，我们需要注册吗？

问题（中文）
如果我通过研磨从欧盟供应商处购买的非纳米物质来生成纳米物质，我们需要注册吗？
Question (EN)
Do we need to register if I generate a nanoform of a substance by milling the non-nanoforms of a substance that we purchased from an EU supplier?
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）
如果一家公司从欧盟供应商处购买非纳米形态的物质，并将其研磨成纳米形态，则该特定活动被视为该物质的下游使用，而非制造。因此，作为下游用户，您无需承担注册义务，但需遵守第37条和第38条规定的下游用户义务。更多信息，请参阅“物质纳米形态问答”第一章“下游用户义务”。
Answer (EN)
If a company purchases from an EU supplier a substance in a non-nanoform and mills it down to generate a nanoform of the substance, this particular activity is considered as a downstream use of the substance, rather than as manufacturing of the substance. Therefore, as a downstream user you do not have registration obligations, but you are subject to the downstream users’ obligations set out in Articles 37 and 38. For further information please see the Q&As on Nanoforms of substances, chapter I. Downstream user obligations.