The ruling upheld an agreement barring purchases of soybeans grown on Amazon land cleared after 2008, while allowing states to withdraw tax incentives from participating companies. RIO DE JANEIRO (CN) — Brazil’s Supreme Court ruled Wednesday that the Amazon Soy Moratorium, an agreement restricting purchases of soybeans grown on land in the Amazon biome cleared after 2008, is constitutional, but states may withdraw tax incentives from participating companies. Mato Grosso’s attorney general’s office defended the law in a statement, saying the state should not grant public benefits to companies that impose restrictions beyond Brazil’s Forest Code, which it called “one of the most severe” environmental laws in the world.