One Artist Has a Monopoly on the World's Blackest Black Pigment, Smart News

Artists are up in arms over Anish Kapoor’s exclusive rights to "vantablack"

Artist Makes 'Blackest Black Paint in the World' to Protest Anish Kapoor

The Vantablack Controversy: Anish Kapoor vs. Stuart Semple

TIL sculptor Anish Kapoor bought exclusive rights to the Vantablack, world's “blackest black. So artist Stuart Semple developed a new pigment “pinkest pink” to rival the exclusivity of Kapoor's black. Semple's pigment

Not-fair' cry after black monopoly - Telegraph India

Color Wars – How Art World Responded To Monopoly – ARTDEX

The Vantablack Controversy: Anish Kapoor vs. Stuart Semple

Black 3.0: Anish Kapoor and the art world's pettiest, funniest dispute, Painting

This Company Created the Blackest Black Ever Known – and Only One Artist Can Use It

Stuart Semple Unleashes His Final Superblack Paint in His Long-Running Art Supply Battle With Anish Kapoor