Investor Presentaiton

10,000 8,000 6,000 4,000 2,000 FY12 FY13 FY14 FY15 FY16 FY17 FY20 Southern Region (VIC/TAS/SA) 12,000 CONCRETE ~(0.4)% CAGR¹ 4,000 ASPHALT -6.1% CAGR1 FY12 FY13 FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21 40 30 20 10 FY00 FY02 FY04 FY06 - 50 Non-residential², VWD A$b FY08 FX10 FX12 FY14 Activity by Segment Revenues are derived from various market segments RHS&B2,3, VWD A$b Detached dwellings5, # starts 225051 120,000 80,000 External revenue by end-market¹, % 40,000 Other Detached dwellings 16 Other engineering4, VWD A$b Multi-dwellings5, # starts 125 120,000 Multi- 100 35 RHS&B3 11 dwellings 80,000 75 50 40,000 25 FY 16 12 Alterations & additions 16 Other engineering Non-residential 1. Based on split of 1H FY2018 Boral Australia external revenues 2. Source: ABS, BIS Oxford Economics and Macromonitor forecasts, constant 2015/16 dollars. Note charts have been based on 2015/16 dollars unless otherwise noted 3. Roads, highways, subdivisions and bridges 4. Source: ABS, Macromonitor forecasts, constant 2015/16 dollars 5. Source: ABS Jan-18 data release, BIS Oxford Economics, Macromonitor and HIA forecasts Activity by Geography Well positioned to take advantage of historically high levels of activity FY12 FY13 FY14 FY15 FY16 FY17 FY18 FY 19 FY20 FY21 WA/NT QLD CONCRETE ~(0.6)% CAGR1 ASPHALT ~(0.7)% CAGR1 CONCRETE 5,000 2,000 Boral Australia revenue² ~(1.1)% CAGR1 8,000 5,000 4,000 1,500 6,000 4,000 3,000 1,000 by region, % 3.000 4,000 2,000 2,000 1,000 500 2,000 1,000 3,000 2,000 1,000 FY12 FY13 FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21 Compound annual growth rate from FY2017 to FY2021 forecast by Macromonitor, February 2018 (Concrete in '000 m³ and Asphalt in '000 tonnes) 1. 2. Based on 1HFY2018 split of Boral Australia external revenue 10,000 8,000 6,000 4,000 24 FY12 FY13 FY14 FY16 FY17 FY18 FY19 FY20 23 46 NSW/ACT 12,000 CONCRETE ~(1.0)% CAGR¹ 3,000 ASPHALT -3.8% CAGR¹ 2,000 FY12 FY13 FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21 2,000 1,000 FY12 FY13 FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21 58 FY21 FY12 FY13 FY14 FY15 FY16 FY17 ASPHALT -7.3% CAGR1 FY18 FY19 FY20 FY21 BORAL 12.5 10.0 7.5 5.0 2.5 FY00 FYOO Alterations & additions², VWD A$b FFY02 FY04 FY06 FY08 FY10 FY12 FY14 FY16 FY18F FY20F FY22F 57 BORAL

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