GUWAHATI, May 29? Digboi refinery, the oldest refinery in the country, has not been able to produce speciality products to its full capacity due to lack of demand in the North-eastern region. Digboi refinery sources revealed that the refinery produces speciality products like MTO, JBO, Solar Oil, wax oil, binder oil, rhino shine, indo coat, indo paste, wood oil etc to cater to the requirements of the tea companies, paint industry, shipping industry, jute industry and various other industries. But some industries are still using such products imported from outside mainly due to lack of...