CAHYA MATA SARAWAK SUSTAINABILITY REPORT 2015

20 CAHYA MATA SARAWAK SUSTAINABILITY REPORT 2015 CMS’ Electricity Consumption To align with the GRI Guidelines for Sustainability Reporting, the Group is presenting its total energy consumption for the last three years. This data is presented as follows: CMS’ Electricity Consumption (kWh) by Division Division 2013 2014 2015 Cement 116,434,084 124,417,379 129,166,315 Construction Materials & Trading 4,323,177 4,076,371 3,912,248 Construction & Road Maintenance 581,529 607,536 660,837 Property Development 91,624 151,509 171,074 Samalaju Development 7,767,327 3,136,491 5,394,312 Total 129,197,741 132,389,286 139,304,786 Water Management Water is a limited and precious resource and must be managed both for immediate needs and for long-term economic and environmental sustainability. At CMS, we aim to control water use by planning, developing, distributing and managing water resources optimally. Using Recycled Water to Cool Machinery CMS Quarries Sdn Bhd reuses recycled water to cool its machinery. We have two water ponds for this purpose that can store 2.43 m 3 and 3.3 m 3 of water respectively. Rainwater Harvesting Programme Rainwater harvesting is the process of collecting rainwater with the intention of reusing it on-site. In 2010, we began our Rainwater Harvesting Programme at our Clinker plant. However, the project is currently on hold but we aim to relaunch the programme in 2016 and also extend it to other Divisions. CMS’ Water Consumption To align with the GRI Guidelines for Sustainability Reporting, the Group is presenting its total water consumption for the last three years. Our water consumption by Business Division is presented below. Water Consumption by CMS Business Divisions (m 3 ) Division 2013 2014 2015 Cement 120,806 155,079 192,220 Constructions Materials & Trading 42,617 34,877 30,730 Construction & Road Maintenance 4,128 3,854 4,615 Property Development 809 352 510 Samalaju Development 289,810 53,982 133,084 Total 458,170 248,144 361,159 Materials Management Materials Management involves the replacement of raw materials with recycled materials where appropriate. At CMS, we are conscious that our planet has finite natural resources. As such, we do our best to research and innovate so as to reduce the use of natural resources in our operations where suitable. Reusing Waste in the Production of Clinker We are committed to using waste products in our clinker production. We use sludge, old kiln bricks and ash as replacement materials for limestone which is a natural resource. Ca(OH) 2 sludge is also used as a replacement material. Whilst the replacement percentage is negligible, we are looking to collaborate with other industrial players to obtain larger volumes of sludge. CMS Clinker is also studying the possibility of using Phosphogypsum waste as a replacement for limestone. We have obtained waste samples from Perak and China for research, however, more studies have to be conducted to ascertain the feasibility of this waste material. One of CMS Clinker’s long-terms goals is to increase substitution of limestone with at least 18% of granulated blast-furnace slag, fly ash, silica fume and burnt shale or a combination of these materials. This will also benefit CMS Cement as their cement can then carry an Eco-label and be more suitable for exports. Tyre-derived Fuel Tyre-derived-fuel (TDF) is a fuel derived from scrap tyres of all kinds and it produces the same energy as petrol and approximately 25% more energy than sub-bituminous coal. Burning tyres is also a better option than discarding used tyres in landfill. This is especially important in Malaysia, as tyres may harbour disease vectors such as mosquitoes that can transmit several tropical diseases. Effective March 2015, in place of coal, CMS Clinker began processing TDF by burning small quantities of shredded tyres purchased from a local-based supplier to manufacture clinker. Following these trials, no significant negative effects were discovered at the clinker plant. We are now seeking the relevant approvals from governmental authorities for commercial production of TDF. Manganese Slag Premix Aggregates Replacement for Road-based Materials Our Construction & Road Maintenance Division is studying the possibility of using manganese slag premix aggregates for road-based maintenance and construction work. This slag is sourced from the Samalaju Industrial Park. Cold In-Place Recycling (CIPR) CMS Pavement Tech Sdn Bhd is a specialist provider of pavement works covering construction, rehabilitation and maintenance. Its core business is the rehabilitation of existing pavements by cement/bitumen stabilisation using the Cold In- Place Recycling (CIPR) technique. The conventional pavement reconstruction methods involve adding another layer on top of the existing pavement. This method tends to be costly, inefficient, slow and environmentally-unfriendly due to the extensive usage of construction materials, the dusty conditions at worksites and the longer construction time required. CMS Pavement Tech specialises in using cement stabilisation technology to reconstruct and rehabilitate pavements using the Wirtgen WR2500S machine. The existing pavements are recycled, stabilised with cement and enhanced with a higher strength, new bounded base. CMS Pavement Tech is also capable of performing stabilisation works ENVIRONMENT