The statement "then not much sponsor available at this moment as market is very new" is NOT true. There are lots of publishers HTML5 games. I list well over 60 in my EBook. They also vary in their requirements and genres. But you need to understand the different portals, game sites, and distributing platforms. HTML5 mobile web games are booming right now. Many HTML5 game developers are making very lucrative incomes but you need first to have a quality polished game. And you need to develop the understanding to know if your game is worthy of being sponsored.
Even some of the best games get turned down by Softgames.de because they have a very stringent requirements and of course you need have a good game as well. Your game also needs to be mobile and PC ready and properly size across all or most devices.
Sponsorship is not the only option. There is also revenue sharing and other monetizing options available. Making a good game is only half the battle. The other half is marketing it, and more important, how and who to Market it to. Just like learning to develop a game takes time, so does learning the market, and how to market.
Make sure you talk to and get opinions from developers who actually make money successfully.
And while I cover many of these details to gaining understating in my EBook, I think I'm going to post a tutorial on some outlines of requirements and standards including some info approach to getting published.
Feel free to ask me any questions....and good luck.