ISO 14001 certified Environmental Management System EMS The Existence of Environment Function ENV_FU

3. The formed index calculation of greenhouse gas emissions disclosure as follow:

3.1.2 Independent Variables

An independent variable is influences the dependent variable in either positive or negative way Sekaran, 2006. In this study, there are seven independent variables. In previous chapter is explained each of independent variable. The independent variables in this study are consists of:

3.1.2.1 ISO 14001 certified Environmental Management System EMS

Measurement was determined by the quality of environmental management system. The rank of environmental management system and the value of each rank were classified into 4 categories, Table 3.3 Environmental Management System Explanation Ranking The value of Rank Getting a certification or registration of ISO 14001 certified EMS from external parties or another organization 1 4 Self-determination or self-declaration of ISO 14001 certified EMS 2 3 Company has environmental management system without certification of ISO 14001 3 2 Company has not environmental management system 4 1 Source: developed for this study, 2012

3.1.2.2 The Existence of Environment Function ENV_FU

Measurement was performed by assessing on how the position of environment functions in a company. The indicator is the existence of environment function, either inside position in management hierarchy or outside the management hierarchy person responsible of environment activity. The detailed explanation about the existence of environment function is in below table: Table 3.4 The Existence of Environment Function Explanation Ranking The value of Rank The person responsibility of environment issues at top management 1 4 The person responsibility of environment issues at middle management 2 3 The person responsibility of environment issues at low management 3 2 The person responsibility of CSR outside the management hierarchy 4 1 Source: developed for this study, 2012 3.1.2.3 The Report of Environment Information in accordance with Global Reporting Initiative Version 3.1 GRI This measurement was determined by the score of environment information that was disclosed by company, and be compared with score of environment performance based on GRI version 3.1. GRI version 3.1 was used in this study as follows: Table 3.5 Environment Performance Indicator Based on GRI Version 3.1 Item of GRI version 3.1 Environment Performance Indicators Be Disclosed Yes No Aspect: Materials EN1 Materials used by weight or volume. EN2 The percentage of materials used is recycled by the input of materials. Aspect: Energy EN3 Direct energy consumption by primary energy sources. EN4 Indirect energy consumption by primary source. EN5 Energy saved due to conservation and efficiency improvements. EN6 Initiatives to provide energy-efficient or renewable energy-based products and services, and reductions in energy requirements as a result of these initiatives. EN7 Initiatives to reduce indirect energy consumption and reductions achieved. Aspect: Water EN8 Total water withdrawal by source. EN9 Water sources significantly affected by withdrawal of water. EN10 Percentage and total volume of water recycled and reused. Aspect: Biodiversity EN11 Location and size of land owned, leased, managed in, or adjacent to, protected areas and areas of high biodiversity value outside protected areas. Item of GRI version 3.1 Environment Performance Indicators Be Disclosed Yes No EN12 Description of significant impacts of activities, products, and services on biodiversity in protected areas and areas of high biodiversity value outside protected areas. EN13 Habitats protected or restored EN14 Strategies, current actions, and future plans for managing impacts on biodiversity. EN15 Number of IUCN Red List species and national conservation list species with habitats in areas affected by operations, by level of extinction risk. Aspect: Emissions, Effluents, and Waste EN16 Total direct and indirect greenhouse gas emissions by weight. EN17 Other relevant indirect greenhouse gas emissions by weight. EN18 Initiatives to reduce greenhouse gas emissions and reductions achieved. EN19 Emissions of ozone-depleting substances by weight. EN20 NOx, SOx, and other significant air emissions by type and weight. EN21 Total water discharge by quality and destination. EN22 Total weight of waste by type and disposal method. EN23 Total number and volume of significant spills. EN24 Weight of transported, imported, exported, or treated waste deemed hazardous under the terms of the Basel Convention Annex I, II, III, and VIII, and percentage of transported waste shipped internationally. Item of GRI version 3.1 Environment Performance Indicators Be Disclosed Yes No EN25 Identity, size, protected status, and biodiversity value of water bodies and related habitats significantly affected by the reporting organization’s discharges of water and runoff. Aspect: Products and Services EN26 Initiatives to mitigate environmental impacts of products and services, and extent of impact mitigation. EN27 Percentage of products sold and their packaging materials that are reclaimed by category. Aspect: Compliance EN28 Monetary value of significant fines and total number of non-monetary sanctions for noncompliance with environmental laws and regulations. Aspect: Transport EN29 Significant environmental impacts of transporting products and other goods and materials used for the organization’s operations, and transporting the member of workforce. Aspect: Overall EN30 Total environmental protection expenditures and investments by type. TOTAL Source: Global Reporting Initiative, 2011 Score calculation of environment information reporting in accordance with GRI version 3.1 had following steps: 1. Gave score for each item of disclosure by dichotomy. The companies were given score 1 if they disclosed the item of information and score 0 if they did not disclose the item of information. 2. Score that was obtained by each company was summed for getting the total score. 3. Score calculation the report of environment information in accordance with GRI version 3.1 had the following formula:

3.1.2.4 Rank of PROPER