Writing long sentences will alienate your readers and would even cost you your customers.
Try to shorten your sentences whenever possible:
Long: The company will invest $2billion in a new semi-conductor manufacturing plant in San Jose, California, which will have living quarters for engineers, a school, a swimming pool and a recreation center.
Better: The company will invest $2billion in a new semi-conductor manufacturing plant in San Jose, California. The plant will have living quarters for engineers, a school, a swimming pool and a recreation center.
Make it short and sweet!
