Best of the week — the five most popular stories among readers, September 15 – September 19, 2025

What were the five biggest stories of the week? Here’s what visitors to @AuManufacturing were reading. 5) Green Gravity says former Wollongong Resources coal mine to host world’s first demo deployment of “breakthrough technology” Green Gravity and Wollongong Resources have announced execution of a binding agreement for gravitational energy storage trials at the Russell Vale mine. The pair…

Haigh’s Chocolates opens new $120 million factory 

Haigh’s Chocolates, the 110-year-old, family-owned maker of premium chocolate products, has officially opened its new $120 million, 18,000 square metre facility at Adelaide’s Salisbury South. Construction of the new production, warehouse and online fulfillment facility was announced in late-2023. The now-opened site represents the company’s biggest-ever single investment, is currently producing 1,100 tonnes of chocolate…