Please review my first Integrated TOEFL essay

I am not that good at grammar, please point out my grammar mistakes (ignore the typos)

Integrated writing

Both paragraph and speaker argues whether United States wood selling companies are willing to take eco certification for their products or not. The paragraph emphasizes the reasons for United States to not choose an “eco certification” for wood products. However the speaker contradicts this notion by providing three reasons.

Firstly, the passage asserts that American customers do not trust the advertisments hence they do not value the ecocertification label, contrarily the speaker refutes this statement by asserting that customers do not value the advertisements which involves flaunting their products but they do value the certifications that present as a proof for trust worthiness.

Secondly, It is true that customers prefer cheap prices but they do so when there are multiple merchants that sell same product at different prices. Furthermore customers can go an extra mile to spend additional money upto 5% if they find that product to be eco friendly certified. Fortunately the discrepancy of money between normal wood and eco certified wood is not greater than 5%.

Finally, As selling eco certified wood is not an abroad business the paragraph assumes that american companies might not be interested in promoting eco certified wood, nevertheless there could be a possibility of foreign companies to sell the new eco certified wood to the americans customers additionally as american citizens are susceptible to purchase these items it could becoma a boon for foriegn companies expanding in the united states.