April 23 (Reuters) - KGHM KGH.WA :
* Q1 PAYABLE COPPER PRODUCTION 172.8 KT VS 142.9 KT YR AGO
* Q1 COPPER SALES 167.4 KT VS 132.4 KT YR AGO
* MARCH PAYABLE COPPER PRODUCTION 60.3 KT VS 48.8 KT YR AGO
* MARCH COPPER SALES 63.9 KT VS 52.4 KT YR AGO
* MARCH SILVER PRODUCTION AMOUNTED TO 128.7 TONNES, 51 PCT YOY
* MARCH SILVER SALES AMOUNTED TO 122 TONNES, UP 93 PCT YOY