TM861: The suspension of the autonomous Common Customs Tariff duties for the agricultural and industrial products, listed in the Annex of Regulation (EU) 2021/2278, does not apply to any mixtures, preparations or products made up of different components containing these products.
Article 1 paragraph 2 of Regulation (EU) 2021/2278

TM510: 1. Customs duties shall be suspended in respect of goods intended for incorporation in the ships, boats or other vessels classified at the following CN codes 8901 10 10; 8901 20 10; 8901 30 10; 8901 90 10; 8902 00 10; 8903 91 10; 8903 92 10; 8904 00 10; 8904 00 91; 8905 10 10; 8905 90 10; 8906 10 00; 8906 90 10 for the purposes of their construction, repair, maintenance or conversion, and in respect of goods intended for fitting to or equipping such ships, boats or other vessels.
2. Customs duties shall be suspended in respect of:
(a) goods intended for incorporation in drilling or production platforms:
(1) fixed, of subheading ex 8430 49, operating in or outside the territorial sea of Member States, or
(2) floating or submersible, of subheading 8905 20, for the purposes of their construction, repair, maintenance or conversion, and in respect of goods intended for equipping the said platforms.
(b) tubes, pipes, cables and their connection pieces, linking these drilling or production platforms to the mainland.

EU003: According to The Special Provisions of Section II (A) (3) of the Preliminary Provisions of the Combined Nomenclature the suspension of customs duties for goods for certain categories of ships, boats and other vessels and for drilling or production platforms shall be subject to conditions laid down in the relevant provisions of the European Union with a view to customs control of the use of such goods.

CD333: The autonomous Common Customs Tariff duties laid down in Regulation (EEC) No 2658/87 for parts, components and other goods of a kind to be incorporated in or used for aircraft and parts thereof in the course of their manufacture, repair, maintenance, rebuilding, modification or conversion is suspended.
In order to benefit from the suspension, the declarant shall present to the customs authorities an Authorised Release Certificate — EASA Form 1, as set out in Appendix I to Annex I to Regulation (EU) No 748/2012, or an equivalent certificate.
The certificates which are deemed to be equivalent to Authorised Release Certificates are listed in Annex II to the Regulation (EU) 2018/1517.