Note that Pudong Develoment Bank, with almost 1 trillion dollars of assets, has the Chinese state as its largest shareholder through the Shanghai International Group (SIG) that manages 150 trillion dollars of assets (!), so it's a de facto Chinese state owned and state backed banking institution.
This means that Pudong Development Bank's financing decisions will thus be a mixture of commercial profit seeking and support of long term Chinese government policy.
I don't know which one it is in this case - but if this is expression of state policy to support EV adoption then it could easily be financed by them and not Tesla.