Thanks for the info. I saw the OÜ and the registered address in Tallinn and thought it was based here. I can’t edit my original comment now unfortunately.
This is essentially po box (or more just fake address) for Estonian e-resident companies (https://www.e-resident.gov.ee/). It is quite popular for fellow neighbours Russians, Belorussians etc for whom their local country is not that enterpreneurial-friendly.