https://africa-middleeastmining.com/appian-appoints-paulo-castellari-as-new-ceo-of-critical-minerals/Africa-Middle East Mining and Energy Newsen2026-04-16T08:42:00+00:00Appian appoints Paulo Castellari as new CEO of Critical Minerals https://africa-middleeastmining.com/andy-fisher-joins-ar-racking-uk-as-key-account-manager/Africa-Middle East Mining and Energy Newsen2026-04-16T08:37:42+00:00Andy Fisher joins AR Racking UK as Key Account Manager