Dear Gordon Bateson,
We do not intend to get financial support from conference organizers or other entities. Financial quaranty for all spendings will be presented by our company, with all the details related to R4 Technology & Research LLP. All the accountability on legal issues that potentialy may occur will be on us (we will sign related documents).
Conference organizers don't need to make quaranty in any form. However, according to representative from Japanese embassy in Kazakhstan for issuing visa they need official invitation letter filled by Conference Organizers for indication of purpose of stay.
Please take a look to the attached invitation letter.
I wonder if there are other more private ways to communicate with conference organizers. I couldn't find any email addresses or tel. numbers.