Fellow CPHC here, also looking to push for PH in my home country, Panama, in LATAM.
I have found that the best way to start the movement is to start discussing with local professionals in my network, and try to gain more momentum by presenting the basic PH principles and how they can increase the local construction, how it will improve everyone comfort, and revenue for investors.
It is an ongoing project I started a month ago though. Some people have shown interested; and definitely creating easily understandable and relatable tools and concepts is the best way to get the point across.
I do not know the social, political, and economical situation is in your country but, I am sure that starting to advocate for comfort and healthier buildings is the first step.
I hope this helps.