China has a relatively young antitrust regime, going back just five years, in comparison to the U.S. and the EU. Linklaters partner Jonas Koponen explains the reasons behind China's recent prohibition of a European shipping alliance between A.P. Moeller-Maersk A/S, Mediterranean Shipping Co. and CMA CGM SA, which did not get any challenges in the U.S. and the EU. He advises western firms to "put China high on the agenda" and understand there will be long reviews that may take twice or three times what they take in the EU. He suggests keeping up the pressure on international collaboration and convergence between regulators. The Deal's Renee Cordes reports from Brussels.