Bayport Polymers LLC (Baystar) was created as a joint venture in 2018 between three established petrochemical industry leaders, Total S.A. (Total), Borealis Holdings LLC and NOVA Chemicals.

Our Baystar joint venture investment is building a 625,000-ton-per-year polyethylene unit at our production site in Pasadena, Texas. The new Bay 3 unit will use Borstar® technology and more than double our site’s polyethylene capacity to 1.1 Mt/y with a start-up scheduled in 2021. The contract for the engineering, procurement and construction of the new unit has been awarded to McDermott and is expected to employ 1,750 staff during peak activity.

Baystar is also currently building a one-million-tonne per year steam cracker in Port Arthur, Texas. This cracker will process ethane, which is abundantly available and competitively priced in the U.S. and will supply our Baystar polyethylene units.

“The power of this partnership between Total, Borealis and NOVA Chemicals will enable us to become one of the largest players in the North American polyethylene market,” says Baystar President Diane Chamberlain. “The Borstar technology, which will be used for the first time in North America, will allow us to better serve our customers with an increased range of high-value-added products.”

But it’s Much More than just technology, innovation and polyethylene production… at Baystar, we’re a Family

We operate with a Core Purpose and Five Core Values that guide Baystar’s success, encourages our employees to achieve their potentials and still allow us to treat each other like Family.

Core Purpose
To use the Power of Partnership to provide safe, responsible, sustainable and innovative products


Dedicated to Safety, Employees, Customers, Community and Environment


Living a Culture of Openness, Honesty and Collaboration


Creating Value by Delivering the Right Solutions


Daring to be Different by finding New Ways


Embracing our Diverse Family and Celebrating our Successes

How are we Unique as a Company?

Right Size – Small enough to be True Partners, Big enough to Deliver the Right Solution

Diversity of Knowledge-Base

Applying Total’s Lumicene® and Borealis’ Borstar® family of brands

Who are we and How did we get here?
Baystar – a Proud History by any Name

Team oriented workforce with outstanding safety culture, family atmosphere and strong work ethic that has worked within a series of corporate entities

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