Washington (CNN) President Donald Trump took a break from his August vacation on Tuesday to visit a Pennsylvania petrochemical plant that he hailed as an example of US energy dominance, while also making an overt 2020 campaign pitch.

The Shell Pennsylvania Petrochemicals Complex in Monaca, just outside of Pittsburgh, is scheduled to be finished in the early 2020, and will focus on producing plastic made from byproducts of fracking for natural gas.

The Appalachian region of Pennsylvania and West Virginia are large fracking producers, and the plant could help revitalize the industry which has been hit hard by lower natural gas prices. The massive plant has created 5,000 construction jobs. About 600 jobs are expected to be permanent, The New York Times reported

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But according to the Times, environmentalists are concerned that the plastic eventually produced at the plant will just add to the glut of plastic debris that is not being recycled and is adding to pollution worries.

Trump, however, blamed other countries in Asia, including China, for mismanaging their plastic distribution and disposal.

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