A2s has national and international experts in various fields (geology, hydrogeology, mechanical hydropower engineering) etc ... ... ... ... .. 
So A2S provides services in various fields : 
Representation 
Supplies of industrial and mining 
Logistical support 
Commercial interface 
Contact with the local authority 
Provision of documentation 
Consultation & purchase international tender 
Collection of data compilation 
Provision of technical solutions 
Provision of renowned experts 
Drilling of water and mineral survey.