SFRA
SFR — the content (in shares) of phosphorus oxide in 1 tonne of extracted mineral... as a quotient obtained by dividing the magnitude of change in reserves of phosphorus oxide of all categories due to its extraction on the mining area (in tonnes) by the corresponding total volume of ore extracted on the mining area (in tonnes). The value of the SFR indicator is rounded to the fifth decimal place.1.
Tax Code of the Russian Federation, as amended on 2025-01-01, Article 342.15, paragraph 1 // Official Gazette of the Russian Federation. 2000. No. 32. Art. 3340. ↩