Road construction and maintenance is a component in the
construction industry; the major raw materials used in
the construction of roads are tars and bitumen hence
there is a large market for tars and bitumen.
Manufacturers of Tar and Bitumen will generally depends
on suppliers, that means receivers of Tar and Bitumen,
they will have tie-ups with stakeholders.
You can network with the ministry of works / public works
departments (PWD) in your country because they are one of
the big – time consumers of tars and bitumen.