Laurent Tenneguin, a mechanical engineer in the China CTIC Team, signs his name on a banner as Philipe Dessertenne (1st R), the team’s French motorboat driver, and two other mechanical engineers look on. Dessertenne and his team joined the signatories for the Shenzhen 2007 F1 Powerboat World Championship GP. The event was held at different locations across the city, including the Nanshan district government building, headquarters of China Merchants Bank, Shekou’s Wal-Mart and Sea World, and the Shenzhen Broadcasting and TV Tower on Wednesday. The Shenzhen 2007 F1 Powerboat World Championship GP will be held on Shenzhen Bay’s Inner Lake on Oct. 20 and 21. Newman Huo