As part of its ongoing efforts to achieve net-zero Scope 1 and 2 carbon emissions by 2050, Rio Tinto is actively
exploring the potential of biofuels in the low-carbon energy mix. The company sees biofuels as an avenue to
reduce reliance on fossil diesel, while fleet electrification technologies mature. Rio Tinto is also investigating how
biofuels could be used in scenarios where electrification may face practical limitations.
Rio Tinto Chief Decarbonisation Officer Jonathon McCarthy said: “Diesel accounts for around 10 percent of our
emissions footprint in Australia. While we continue to pursue electrification as the long-term solution for displacing
the majority of our diesel use, the Pongamia seed pilot is an important parallel pathway that could reduce our
reliance on diesel in the mid-term. It also presents a compelling option for other applications that are challenging
to electrify, including blasting and non-haul equipment.
“Australia does not yet have a biofuel feedstock industry sufficient to meet domestic demand. A sustainable
biofuels industry here could enhance the region’s fuel security, create local economic opportunities, and contribute
to emissions reductions targets. We are excited about the potential of the Pongamia seed pilot and look forward to
partnering with Midway Limited and north Queensland communities.”
Midway Limited Managing Director Tony McKenna said: “We are very excited to be partnering with Rio Tinto on
this innovative pilot project. We are proud to be playing an important role in helping develop a sustainable
domestic biofuel industry.
“The collaboration continues the growth of our position as trusted providers with the capability and experience to
deliver a variety of projects for emitters who are committed to seeking alternative solutions to reduce their net
emissions.”
This pilot follows a smaller-scale trial at Rio Tinto Gove operations in the Northern Territory where Pongamia
saplings were planted to learn more about their response to low soil quality, heat and other climatic conditions in
northern Australia.
About Pongamia
Pongamia (Millettia pinnata) is a legume tree native to Australia. It is fast-growing, resilient and produces oil-rich
seeds that can be processed into renewable diesel, which offers a significant reduction in life-cycle carbon
emissions compared to fossil fuel diesel. Pongamia seed can be harvested annually, leaving the trees and soil
intact to store carbon dioxide.
About Midway Limited
Founded in 1980, Midway Limited is one of Australia’s largest woodfibre processors and exporters with a strong
and growing carbon abatement management business. Midway’s fibre is used in recyclable paper and packaging,
plastic replacement products. The Company is building a carbon abatement development and management
business to generate carbon abatement and emissions offsets solutions utilising its expertise in the industry.
Midway has woodchip processing and exporting operations at five major port locations in key forestry areas
around Australia including: Bell Bay, Tasmania; Portland and Geelong in Victoria; Brisbane, Queensland; and
Melville Island in the Northern Territory’s Tiwi Islands.
Note to editors
In 2023, Rio Tinto's Boron, California operations became the first open pit mine in the world to complete the full
transition of its heavy machinery to renewable diesel. The company's Kennecott copper operation in Utah will also
replace its fossil diesel consumption with renewable diesel in 2024.