Sorry, he has said where it's coming from - £40m in total.
The mayor says Tees Valley has an investment fund totalling £513m over the next few years, with £450m guaranteed by Government over the next few decades.
"So using the money devolved to our area from central government, I am proposing to use just over 6% of that - £35m – to acquire Peel’s shareholding in our airport, including over 819 acres of surrounding land. So not just the airport, but all of the developable land around it. Also - as many of you know, there is a site just outside this terminal with outline planning permission to accommodate up to 350 homes. As part of the deal, we will acquire this site for £5m."