Senior Management Email List Required - Chemicals Industry

The project is to develop a list of senior contacts at global chemical companies, using LinkedIn or company websites or other sources. The main roles of people we want on the email list are at director level responsible for 1. Strategy 2.Corporate Development 3.Innovation. We only need one contact per company to start, with strategy the key role. We can provide the names of the chemical companies to be researched. Initially we request a list of 100 to check quality. If the quality of work is good, we will do further batches of 200 every couple of weeks until year end. So please advise a cost for the 100 and then 200 in your application of interest.