Chad, June 21 -- Many online listeners initially thought it was the anthem song for the FIFA World Cup, only to learn it is actually a company anthem.

Recently, the Song of Chambishi Copper Mine, an anthem from a Chinese-operated copper mine in Zambia, took social media by storm. In the viral video, a group of local workers dressed in white shirts and black trousers sing passionately beneath a tent under the blazing African sun.

"From the depths of hardship we rise again, through storms and flames we press ahead..." Driven by a rousing melody and hopeful, uplifting lyrics, the song struck a chord with viewers worldwide. Thousands online said its messages of grit and unwavering optimism left them deeply moved.

How did a workplace anth...