Syngenta’s CEO says the company remains on pace to complete the takeover by China National Chemical, or ChemChina, by the end of this year. ChemChina offered more than $43 billion in cash for the Swiss company in February. Syngenta CEO John Ramsay told Bloomberg Wednesday that the process of getting approval from regulators was moving according to its original timetable. However, some analysts warn the deal could be delayed by regulators, including the Committee on Foreign Investment in the United States. Some U.S. lawmakers are cautious of the takeover because of the plan’s potential impact on U.S. farmers’ access to genetically modified seeds, and have called on the Treasury Department to include agriculture sector regulators as part of its review of the deal.