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Peggy Sito

Green Island Cement, stepping up its efforts to recycle waste, aims to reduce production costs and provide better environmental protection.

It has teamed up with Hong Kong University of Science and Technology to study an innovative system which would recycle SAR household waste into raw materials used in the cement manufacturing process.

Green Island International managing director Gary Yu said the new system was expected to handle about 50 per cent or 4,800 tonnes of waste production from households in Hong Kong.

The system would provide the company, a subsidiary of Cheung Kong Infrastructure (Holdings), with an efficient waste-management programme.

Mr Yu said the recycling system would prevent the production of dioxin, a chemical dangerous to public health.

It would also create energy that would help save electricity in the manufacture of cement products.

Generally speaking, the process would save US$2 per tonne in power expenses.

But Mr Yu said it was too early to say how the system would benefit Green Island Cement's operation until the study was done.

That study is expected to be completed in about four months.

Mr Yu said the company had not started discussions with the Government on the possiblity of receiving household waste output.

Cheung Kong Infrastructure is a Hong Kong and mainland-focused firm with businesses ranging from toll-road companies to power and water plants, as well as a construction materials business.

Analysts said the study could cut operating costs of Green Island Cement in the long run.

But in the short term, the unit could suffer from a protracted weakness in Hong Kong's cement market amid the slowdown in private and public housing construction.



Green Island study looks at recycling waste in production