Co p p er m in es Production 2 higher than the prior quarter as increased feed gr ade out w ei ghed l ow er t hr oughput Lower costs quarter ov er quar t er w er e due t o i m pr ov ed gr ade and l ow er G A Costs also benefited from increase in copper sales L u m w a n a Z am bi a Jab al S a yi d S audi A r abi a 50 Z al d i v ar C hi l e 50 Production 11 higher compared to prior quarter on increased t hr oughput and i m pr ov ed r ec ov er i es Concentrate filter expansion project on plan and budget Extension drilling at Lodes 2 and 4 has progressed with positive out c om es Jab al S ay i d 50 Q 1 2020 Q 4 2019 Q 1 2019 C opper pr oduc ed l bs m illio n 20 18 17 C os t of s al es l b 6 1 28 1 47 1 55 C 1 c as h c os t s l b 8 0 97 1 29 1 10 Al l i n s us t ai ni ng c os t s l b 8 1 11 1 78 1 30 L u m w an a 100 Q 1 2020 Q 4 2019 Q 1 2019 C opper pr oduc ed l bs m illio n 64 63 61 C os t of s al es l b 1 94 2 22 2 16 C 1 c as h c os t s l b 8 1 63 2 10 1 67 Al l i n s us t ai ni ng c os t s l b 8 2 26 3 41 2 79 Z a l d i v a r 50 Q 1 2020 Q 4 2019 Q 1 2019 C opper pr oduc ed l bs m illio n 31 36 28 C os t of s al es l b 6 2 39 2 59 2 68 C 1 c as h c os t s l b 8 1 71 1 95 1 91 Al l i n s us t ai ni ng c os t s l b 8 1 99 2 56 2 12 Production lower than the prior quarter mainly due to lower gr ades and r ec ov er i es Per pound costs improved from the prior quarter due to a f av or abl e ex c hange r at e and l ow er i nput c os t s