China National Chemical Corp (ChemChina) [CNNCC.UL] and Swiss pesticides and seeds group Syngenta AG (SYNN.S) have proposed minor concessions to the EU's competition watchdog to address concerns over their $43 billion merger plan, reports Reuters. Ioannis Kokkoris, Professor of Law and Economics at Queen Mary University of London (QMUL), said divesting Adama Agricultural Solutions Ltd unit was the simplest and cleanest means for ChemChina to address competition concerns. "That ChemChina has not done this yet suggests it is trying to mitigate a full divestment of Adama, such as by selling a number of significant activities," said Kokkoris. "The other scenario is that it has agreed to divest Adama and is now discussing top-up remedies."