Lam Tei Quarry, Industrial quarry in Tuen Mun District, Hong Kong.

Lam Tei Quarry is a working stone extraction site in Tuen Mun with a series of stepped levels descending into the earth. The high walls reveal layers of exposed rock, and operations continue to extract materials used throughout the construction industry in the region.

Quarrying began in 1972 under Tai Ah Stone, a predecessor of Anderson Asia, and only a decade later did the government take over management through contracts. Blasting on the surface ended in late 2022, and surface production ceased in January 2026. Mining moved underground in 2025, operated by Wai Kee Holdings until 2044, making it Hong Kong's first underground quarry.

The quarry's crushed rock, sorted by size, supplies about 5 percent of Hong Kong's total stone aggregate. Concrete and asphalt production lines sit on site, a one-stop setup that cuts transport time and carbon emissions. The quarry also recycles leftover stone from local construction projects.

This is an active industrial site located north of Tuen Mun New Town, and access may be restricted due to ongoing operations. Plan a visit with awareness of the working nature of the location.

In May 1978, truck drivers blocked the quarry entrance to protest against Daiya Stone for delivering stone that did not match orders and favouring certain operators. The quarry also processes leftover stone from local construction projects, recycling it into usable aggregate.