Sustainability
KEY ENVIRONMENTAL AND SOCIAL PERFORMANCE INDICATORS
| Singapore | Australia | ||||
| 2020 | 2019 | 2020 | 2019 | ||
 Environmental Performance(1) |
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| Energy use (GJ) | 1,466,802 | 1,347,094 | 1,834,699 | 1,749,622 | |
| Carbon footprint (tonnes CO2 equivalent) | 162,566 | 164,629 | 427,706 | 418,060 | |
| Electricity intensity (kWh/TB) | 83 | 97 | 133 | 160 | |
| Water use (cubic metres) | 864,646 | 753,238 | 68,737(2) | 78,774(3) | |
| Hazardous and non-hazardous waste (tonnes) | 7,658 | 7,538 | 883(4) | 2,294(4) | |
 Social Performance: People |
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| Gender diversity (% female) | |||||
| – Total employees | 35 | 35 | 31 | 32 | |
| – Middle and Top Management | 34 | 34 | 22 | 22 | |
| Employee voluntary turnover (%) | 15.7 | 18.3 | 15.3 | 17.0 | |
| Employee voluntary turnover by gender (%) | |||||
| – Male | 10.6 | 12.4 | 9.4 | 10.6 | |
| – Female | 5.1 | 5.9 | 5.9 | 6.4 | |
| Average training hours per employee | 40.2 | 34.8 | 19.6 | 18.4 | |
| Employee health and safety(5) | |||||
| – Workplace injury incidence rate | 0.8 | 1.5 | 2.1 | 2.2 | |
| – Workplace injury frequency rate | 0.4 | 0.7 | 1.2 | 1.3 | |
| – Workplace injury severity rate | 7.9 | 12.9 | 8.3 | 16.7 | |
 Social Performance: Community |
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| Community investment ($ million)(6) | S$8.6 | S$11.7 | A$14.7 | A$8.7 | |
| Total volunteering hours | 11,487 | 13,503 | 16,739 | 13,206 | |
Notes:
- Please refer to the Singtel Group Sustainability Report 2020 for the reporting scope of environmental indicators.
- Water use for Optus Sydney Campus and Optus Melbourne office only.
- Water use for Optus Sydney Campus only.
- Data covers waste directly managed by Optus’ contracted waste vendor.
- Workplace safety and health metrics based on International Labour Organization (ILO) definitions.
- Community investment has been verified by The London Benchmarking Group (LBG).
