This is essentially po box (or more just fake address) for Estonian e-resident companies (https://www.e-resident.gov.ee/ https://www.e-resident.gov.ee/). It is

This is essentially po box (or more just fake address) for Estonian e-resident companies (https://www.e-resident.gov.ee/ 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.