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Anyone who spares some time reading it would be appreciated greatly.

I am writing an English hompage for my company, I am on the <our commitment> part. I tried to make it full of sentiments, but I know I had screwed up lots of phrases there, would anyone check it up for me and give me some suggestions, no matter it is about grammar or the content itself? I am really not sure if my writting is suitable for a company's commitment.

Any suggestion is welcomed.

Our commitments :

We are a seller of chemicals, but more than a seller of chemicals. To satisfy our customer chemical requirements with efficiency and integrity is beyond doubt our first priority. The company strives to position ourselves as a preferred choice when a chemical supply is short and a material is required. That is our key philosophy which has supported(?) the company for the last two decades. We conduct the business with a social responsibility for firmly we believe, chemistry, should be concerned about life itself, about a way to make the environment, the world a better place, and that is not only an ambition but also our promise to all of our clients through the world, a great expectation in the chemical market.

Many thanks Joe
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Our commitments :
XXXX is a seller of chemicals which aims to satisfy its customers' requirements with efficiency and integrity, and makes this its first priority. The company strives to position itself as the preferred choice when a reliable and speedy supplier of chemicals is sought. That is the key philosophy which has underpinned the company for the last two decades.

The company conducts its business with a strong sense of social responsibility for it firmly believe that chemistry should be concerned about life itself, about ways to make the environment and the world a better place.
Comments  
Since you said you looked for 'anyone' could help you, I want to make a comment.

You are using 'Chemicals' so many times.

and the last sentence is too long.

~should be concerned about life itself, about a way to make the environment, the world a better place. <- This sentence doesn't seem to be right.
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 Feebs11's reply was promoted to an answer.
Thank you so much, all of you.

Many thanks
We are more than just sellers of chemicals . . .

To satisfy our customers' chemical requirements, our first prioity is service with efficiency and integrity. Our company strives to position ourselves as the preferred choice when a chemical supply is short and material is required. That quality of service is our key philosophy , which has been the trademark of the company for the last two decades. We conduct business with a social responsibility because we firmly believe that matters of chemistry should concerned itself with quality of life and work to make the world's environment a better place. That is not only our ambition but also our promise to all of our clients through the world.
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