French and Benelux stocks - Factors to watch on April 21

PARIS, April 21 (Reuters) - Below are leading stories from French and Benelux newspapers and company-related news which could have an impact on the region's markets or individual stocks.

UNIBAIL-RODAMCO (UNBP.PA)

Unibail-Rodamco said it issued ORNANE bonds worth around 500 million euros, and that the volume could rise to 575 million euros.

[UNBP.PA]

FAURECIA (EPED.PA)

Faurecia posted a 38 percent drop in first-quarter sales to 2 billion euros and confirmed its forecast for 2009 sales to drop 20 percent in Europe and 30 percent in North America. [ID:nLL520067]

SANOFI-AVENTIS (SASY.PA)

Sanofi-Aventis said it would invest $90 million to expand a manufacturing plant in China and produce its Lantus insulin for the treatment of diabetes in the country. [ID:nPEK40472]

MERCIALYS (MERY.PA)

Mercialys said rental revenue rose 11 percent to 31.3 million euros in the first quarter. The group added that rental management indicators were satisfactory in a difficult economic environment and that it was debt-free as of March 31. [MERY.PA]

GUYENNE ET GASCOGNE (GUYG.PA)