Hi Ian - thanks for that ;-)
MAF - Aerolineas MAS - I know that the Mexican AF has used this code in the past, so replacing it with this logo is entirely optional.
SZA - Shenzhen Astro General Aviation/Astroair
TBM/TBN - Taban Air - I've hunted around, and most reputable sources say that Taban Air/Taban Airline (their website uses both names) is TBM. The exception is CH-Aviation which does give TBN, but all agree on the IATA code of HH. No website (apart from the FAA ICAO codes site) lists Iran as having two airlines called Taban, so why not have them both?
TEZ - Tez Jet Air Company