Back-office support in Phnom Penh

I am representing a Construction Equipment company based in Italy. I am currently looking for suitable dealer partner in Cambodia. For this purpose, I need a person, preferably based in Phnom Penh, who can communicate to potential dealer partners in the local language. The person needs to have good communication skills to discuss with potential partners & find out the appropriate person for discussing the dealership proposal. The person would discuss about my company profile with potential dealer partners & help me in establishing contact & if necessary, plan for arranging appointment with the concerned people. Going forward, I may require the person for a longer time schedule also, depending upon further developments.