Monsanto Co <MON.N> sweetened its offer to buy Switzerland's Syngenta AG <SYNN.VX>, valuing the company at around $47 billion as it tries to lure the Swiss firm to the negotiating table, a person familiar with the matter said on Monday.
Monsanto, which wants to combine its world-leading seeds business with Syngenta's own seeds and pesticides, raised its offer to 470 Swiss francs ($501.98) per share from CHF 449 per share, the person said.