Our World in Data (OWID) is a scientific online publication that focuses on large global problems such as poverty, disease, hunger, climate change, war, existential risks, and inequality. It is a project of the Global Change Data Lab, a registered charity in England and Wales, and was founded by Max Roser, a social historian and development economist. The research team is based at the University of Oxford.
seems to be trade-free as everything is based on the principle: open access and open source. You can’t find paywalls or ads on the website and the fact that it is based on donations (without any premium-/pro- features to be unlocked) is another strong indicator for it to be trade-free.