No, it’s not the same. The EAC marking is needed to export to the Eurasian Union (Russia, Belarus, Kazakhstan, Kyrgyzstan, Armenia).  There are many differences between EAC and GOST, the main two are: 1. the scope: EAC is mandatory for a wider range of products, including some not subject to CE (cosmetics, clothing, footwear, etc.). 2. The EAC system does not allow self-declaration. Conformity assessment must always go through a third-party body and/or an official registry of certifications.