Pretty sure removing regulations on energy development (and therefore, cost) are an effort to supporting manufacturing, and Trump has taken an aggressive stance at repealing as much regulation especially in the energy sector, as he can[0][1][2].
Those are just a few citations, but just look up some of his executive actions and orders, as well as some recent legislation he's signed. Some of these addresses repeal of regulations (Using the Congressional Review Act).
The GOP border-adjustment tax is being worked on currently. While debatable in how it does or does not favor imports or exports, at the very least seems to favor establishing business in the US and eliminate tax benefits of incorporating outside the US.[3]
This, and his general desire for a slashing of the corporate rate, should incentivize corporations (manufacturing and otherwise) to move, stay, and hire in US, and move US from one of highest rate countries to one of the lowest.
[0] https://www.forbes.com/sites/christopherhelman/2017/03/28/tr...
[1] http://dailycaller.com/2017/02/02/trump-to-sign-repeal-of-ob...
[2]http://thehill.com/policy/energy-environment/319488-trump-si...
[3] https://taxfoundation.org/faqs-border-adjustment/