FACTBOX: Key facts about Rohm and Haas Co

(Reuters) - Dow Chemical Co (DOW.N), the largest U.S. chemicals manufacturer, said on Thursday it has agreed to acquire specialty chemicals maker Rohm and Haas Co ROH.N in a deal worth $18.8 billion.

Here are some key facts on Rohm and Haas Co:

* Established in the United States in 1909.

* The company posted sales of $8.90 billion for 2007.

* 2007 earnings from continuing operations were $660

million.

* Prior to deal announcement, market capitalization of $8.79 billion.

* Three core segments -- Electronic Materials, Specialty Materials and Performance materials.

* The company also operates a major salt business in North America, which it has been looking to sell.

*Percentage of 2007 sales from various segments

Specialty Materials 54 percent

Electronic Materials 20 percent

Performance Materials Group 14 percent

Salt 12 percent

*2007 sales based on geographic region

North America 49 percent