Western States Voluntary Registry Input Andrea Russell Sustainability Manager Rio Tinto Minerals WRAP Voluntary Greenhouse Gas Emissions Registry Workshop July 18

Rio Tinto: 2nd largest mining co. in world Diverse assets – iron ore, coal, diamonds, copper, borates, talc, aluminium, gold, silver, nickel, uranium, titanium dioxide, zinc, etc. Rio Tinto Minerals: Part of Rio Tinto Industrial Minerals Mine & refine Borates, Talc and Salt Operations across globe, HQ in Denver, CO Main US operations in California, Montana, Texas, and Vermont Rio Tinto NA assets

Rio Tinto Position on Climate Change Building support for government action Developing low emission pathways for our products Taking a proactive stance at our operations to reduce GHG emissions

Building Support for Practical Government Action Rio Tinto will engage with stakeholders to advocate for domestic and international government policies that: Encourage leadership from developed economies Set credible limits Support technology development and deployment Utilize broad-based market mechanisms that increase flexibility and reduce abatement cost

Public Policy: Key Criteria Effective Economically Efficient Comprehensive Equitable International

Participation in Voluntary California Climate Action Registry U.S. Borax a charter member of CCAR RTM President & CEO Gary Goldberg appointed by Speaker of the Assembly, Fabian Nunez, to CCAR Board Certified Borax data back to 2000

Key Criteria for a Western States Registry Reporting into multiple initiatives is time consuming and difficult - coordination and streamlining amongst states/governments is needed Early action needs to bear reward: –with governments and communities, and, –through services via registry such as legislative updates or exporting data to other formats &/or registries

Key Criteria for a Western States Registry Must have a way to ensure a level playing field Simple and easy to use database Internationally recognized protocol Easy access to assistance from Registry to quickly deal with issues Build on what already exists

Summary The larger the region the better Ensure credit for early action Ensure international recognition Level playing field Don’t reinvent the wheel