TANTECH HOLDINGS LTD (TANH) › Cost of RevenueTANTECH HOLDINGS LTD (TANH) — Cost of RevenueAnnual figures by fiscal year, from SEC filings.2013: $44.06M2014: $44.85M2015: $32.08M2016: $26.88M2017: $31.74M2018: $21.53M2019: $43.25M2020: $37.81M2021: $44.83M2022: $42.86M2023: $34.91M2024: $34.00M2025: $31.22M$31.22M2013Cost of Revenue (USD)2025Fiscal YearCost of RevenueChange YoY2025$31.22M-8.2%2024$34.00M-2.6%2023$34.91M-18.5%2022$42.86M-4.4%2021$44.83M+18.6%2020$37.81M-12.6%2019$43.25M+100.9%2018$21.53M-32.2%2017$31.74M+18.1%2016$26.88M-16.2%2015$32.08M-28.5%2014$44.85M+1.8%2013$44.06M—Other metrics: RevenueGross ProfitOperating IncomeNet IncomeEPS (Diluted)Total AssetsTotal LiabilitiesShareholders' EquityCash & EquivalentsOperating Cash FlowCapital ExpendituresShares OutstandingDividends Per Share