OCSiAl, the world’s largest producer of graphene nanotubes, announced a licensing agreement with Brazilian company Skintech for production of OCSiAl’s TUBALL Matrix product. Skintech will manufacture and supply TUBALL Matrix for customers in Brazil, with production beginning immediately.   The agreement is another step in OCSiAl’s expansion into the North, Central and South American markets. The company’s TUBALL Matrix product is an additive that transforms existing materials to reduce weight, i...