Project Salt Run announces charity partners for £1M fundraising challenge

Hannah Cox, also known as Project Salt Run, will run 100 marathons in 100 days across India to raise £1 million for the planet. This week, the project announces its key charity partners for the challenge as Hannah prepares to leave the UK. 

Project Salt Run is a story about what becomes possible when a small group of people choose to act with purpose. Hannah Cox, a first-time ultrarunner and purpose-led entrepreneur, will be the first person to run 100 marathons in 100 days along the Inland Customs Line, a forgotten colonial boundary stretching 4,200km across India and Pakistan.

This historic route once enforced a devastating salt tax. Now, it’s being reimagined as a path toward connection and change. Project Salt Run isn’t just a run; it’s a platform to inspire action and show how businesses and individuals can work together to build a more equitable and sustainable future.

The project is in aid of global charity ‘1% for the Planet’, the global network where thousands of incredible businesses and environmental organisations work together to support people and the planet through pledging 1% of their revenue to causes and charities that work to protect the place we call home and the people who live here. 

“Project Salt Run was born from a chain of moments that felt too aligned to dismiss. It became clear this was the challenge I was meant to take on. Joining forces with 1% for the Planet to raise £1 million is more than fundraising; it’s about creating a legacy of businesses and individuals stepping up for the future of our planet. And that is when people come together, hope can turn into real impact.” Hannah Cox, founder of the Better Business Network and Project Salt Run.

“We’re thrilled to partner with Project Salt Run. As a marathon runner myself, I understand how small steps are the only path to attaining big goals, and I bring this understanding to everything I do. At 1% for the Planet, our global business community drives positive change informed by our belief that simple, repeated actions are how we create real impact at scale. Just like Project Salt Run, where Hannah will be taking meaningful steps each day, our businesses and environmental partners are making strides every day. We’re excited to see how this partnership will inspire others to get involved and make a difference!” Kate Williams, CEO 1% For the Planet.

The additional charity partners for the challenge, chosen by Project Salt Run, are Frank Water, ClientEarth, and Big Change. These three organisations all work to protect people and planet in their own way, and are built on the ethos of collective action. 

“Frank Water is a small but mighty global water charity, with the majority of our sustainable water projects working directly with remote communities in India.  Like Hannah and the Project Salt Run, we aim to tackle global water and environmental issues. From rejuvenating springs in the Himalayas to corporate water stewardship, we combine community knowledge with technical data. We focus on solving complex water problems, working collaboratively with partners to create long-term sustainable change. We’re very excited for Hannah and the Project Salt Run team to get started on this monumental challenge, raising awareness of the importance of an equitable and sustainable future for all, while raising vital funds to make the work happen. We wish Hannah and the team enormous luck with this huge endeavour of 100 marathons in 100 days!” Lizzie Archer, Corporate Partnerships Manager, Frank Water.

“When Hannah first spoke to us about Project Salt Run, we were blown away by the scale of the challenge and incredibly honoured to be considered as a charitable partner. It quickly became apparent that there is a great synergy between our work at ClientEarth and the issues Hannah is raising through the project- tackling injustice, protecting our natural world, and inspiring everyone to come together to create a better planet. We wish her all the best and will be cheering her on all the way!” Sam Campbell, Supporter Retention Manager, ClientEarth.

“We’re absolutely thrilled to be a charity partner for Project Salt Run, alongside such an inspiring group of charities. Challenges like this are a part of Big Change’s DNA – from our founders running the London Marathon tied together as a giant caterpillar, to our Strive community completing endurance challenges. We can’t wait to support Hannah on her journey, and create lasting change for young people together.” Ben Haber, Managing Director, Big Change.

Hannah Cox starts her 100-day challenge on 25 October 2025. You can follow her journey via LinkedIn and Instagram, and donate via the GiveStar page.
 
“The Better Business Network is built on the belief that together we can create change. Project Salt Run takes that same belief out onto the road — raising £1 million for 1% for the Planet, and inspiring businesses to adopt the Better Business Standard and lead with people and planet in mind.” Hannah Cox, founder of the Better Business Network and Project Salt Run. 

Learn more about Project Salt Run and pledge your part of the £1M.