What Was Mined and Where

Hong Kong is rarely associated with mining today, but well into the 20th century the territory yielded tungsten, iron ore and kaolin across several sites. The most notable tungsten operation sat on Needle Hill near Shing Mun Reservoir, where the Yan Hing Mining Company began licensed extraction in 1938. Demand surged during the Korean War (1949–51), driving up prices, but the industry collapsed by 1967 as tungsten prices fell and labour costs climbed. A visitor in 1964 recalls descending hundreds of feet into poorly ventilated tunnels, where miners worked in cramped darkness before scrambling back to the surface with a palpable sense of relief.

Iron ore extraction centred on Ma On Shan. The area’s black waste sand gave rise to the place name Wu Kai Sha (literally “black creek sand”). The mine employed hundreds of families, almost all Mandarin-speaking migrants from mainland China who found it difficult to integrate into Cantonese-speaking Hong Kong. By 1976 the iron mine had ceased production; the once self-contained village of temporary housing, a school and a church now stands empty, a relic of a vanished era.

Kaolin, the essential ingredient for porcelain, was dug from open pits at Cha Kwo Ling, near Lei Yue Mun. The fine white clay was crushed, settled in ponds and shipped in bags to Europe. European potters had searched for kaolin for centuries before finally starting porcelain production in the 18th century, over a thousand years after Chinese artisans. The Cha Kwo Ling pit closed years ago, and its remnants are likely to be erased by new development.

The Industrial Past Behind Hong Kong’s Modern Facade

From Extraction to Global Services

The disappearance of local mining mirrors Hong Kong’s rapid post-war transformation. Cheap labour and wartime demand made small-scale extraction viable. As wages rose and commodity prices stabilised, the business case vanished. The shift to a service economy and, later, a finance hub left no room for heavy, land-intensive industry. The mining villages — often populated by non-Cantonese speakers — highlight the city’s historic role as a refuge for economic migrants who took the hardest jobs because they lacked language skills for the mainstream economy.

Today the physical traces are faint: sealed adits on Needle Hill, abandoned terraces at Ma On Shan, and the soon-to-be-redeveloped Cha Kwo Ling pits. These sites are a reminder that Hong Kong’s geology once mattered as much as its harbour, and that its industrial roots ran deeper than the trading houses and banks that now define it.