2.03 27% Core EBITDA/t (US$/t)) 107 100 94 14% 97 86 13% Net Operating Debt to Equity 0.84 0.80 0.99 0.84 0.99 Note: (1) Consolidated financials are based upon elimination of intra-company (or intra

EBITDA/t (US$/t)) 122 107 91 34% 105 86 22% Net Operating Debt to Equity 0.57 0.84 0.91 (37)% 0.57 0.91 (37)% Note: (1) Consolidated financials are based upon elimination of intra-company (or intra