It really depends on what those works are and their scope. It might be that there is a budget item approved at a general meeting and the EC is now just doing its job to find the best contractor to do the work and/or refining details. Alternatively, they might be doing their homework before bringing a proposal to a general meeting. Or, perhaps the work is maintenance that needs to be done urgently and they are getting on with it. Or perhaps it is something so minor that it can be reasonably done as an executive decision. Or perhaps they are gung ho. Hard to know without further detail. The best thing would be to just ask an EC member.