As revealed by yours truly via Matt at Harrow some time ago, the management at MTU have been in negotiations for a commercial sponsorship of the Thunderdome Stadium. Negotiations seemed to get underway about half way through last season and have now been concluded. Since MTU won the league, I imagine the agreed figure was closer to MTU's initial offer rather than Yamaha's.
Nig has a translation of the MTU news item here.
The importance of this development should be clear. As well as taking Thai football to a new standard and ensuring MTU will not move home for a while, it also gives a massive boost to Muangthong's hopes of retaining the TPL trophy.. The amount of money earned from the sponsorship alone is equal to Thai Port's entire investment on stadium development for next season.
Let's hope it translates into further success.