Price some components domestically in China

My company is preparing to build an electronics product in China. In order to make best component selections for "off-shore" manufacturing I need some components priced from China based component suppliers. You have knowledge of electronic component sources in China. I want 3-4 prices from different vendors for each for Nuvoton N76E003AT20, Nuvoton M031SD2AE and 3Peak TPT488.components along with availability and the specific vendor who will supply the parts plus contact information. I need this info to be accurate. I will assign this project to more than one freelancer. You should should have experience in sourcing electronic components in China and be able to negotiate prices effectively. I will have more components but to start with I need I'd like these parts to start with. Give me a quote on doing this work. Then I will have some additional parts after that