Sale of Construction Materials

Sale of RCA (Recycled Concrete Aggregates)

In 2004, we began recycling construction waste and aggregates at the Sarimbun Recycling Park and in 2013, we relocated our recycling operations to Tuas South Avenue 1. The RCA produced are primarily used for our own civil engineering activities, although we do, depending on prevailing market conditions and demand, sell our products to third parties. We currently own two crushers, the Nordberg Primary Lokotrack Mobile Crushing Plant Model LT106 and Nordberg Secondary Lokotrack Mobile Crushing Plant Model LT1100 manufactured by Metso. They are capable of producing fine aggregates, which are used for road construction or trench backfilling, 20 mm aggregates, which are used for ready-mixed concrete, and graded stones, which are used in the construction of road bases. We also own wheel loaders, excavator breakers and weighbridge systems to support our recycling operations.

Our customers in this segment include Alliance Concrete Singapore Pte. Ltd., Star Ready-Mix Pte. Ltd. and Sinmix Pte. Ltd..

Manufacture and supply of LSS

We also manufacture and supply LSS, which is a self-flowable, self-compacting, self- levelling material consisting principally of soil and cementitious materials that can be used as a backfill material, replacing conventional compacted fill. LSS consists of soil, water and cementitious material which have been mixed uniformly. The LSS manufacturing process utilises soil which has been excavated in construction projects and which would otherwise be discarded as waste.

LSS, which allows easy fill for confined spaces or excavation areas, is considered an alternative to granular fill, which requires to be filled manually, as the former can be placed easily without vibration or tamping. Among other applications, it can be used as non- structural fill for buildings and other structures, as well as for backfill in utility and road construction. Most of the LSS is used to support our civil engineering activities. As and when there is market demand, we will also supply them to third parties. As we are capable of monitoring and adjusting the nature of the LSS mixtures, including the liquidity and strength of the mixtures, we are able to provide customised solutions to meet the different needs of our customers.

LSS is normally delivered in a ready-mixed form by a mixer truck and equipment such as chutes, buckets and concrete pumps may be used to place the material.

Our customers in this segment include Samsung C&T Corporation, Dragages Singapore Pte Ltd, Ssangyong Engineering & Construction Co Ltd, Daelim Industrial Co., Ltd., Penta-Ocean Construction Company Limited, Bachy Soletanche Singapore Pte Ltd., Singapore Piling & Civil Engineering Pte Ltd, Sembawang Engineers and Constructors Pte Ltd, Nishimatsu Construction Co., Ltd. and Hock Lian Seng Infrastructure Pte Ltd.