# Purified terephthalic acid and Refining and reforming

Their prices have moved together.

Source page: https://www.materialinsights.org/links/purified-terephthalic-acid-and-refining-and-reforming/

[Purified terephthalic acid](https://www.materialinsights.org/chemicals/pta/) (chemical) and [Refining and reforming](https://www.materialinsights.org/energy/e_refining/) (energy): 1 relationship.

## How they are linked

### 1. Price link: feed source

*Cost and price · Strong · Both ways*

Paraxylene comes from refinery reformers, many of them in integrated Asian complexes, so refinery economics shift PTA costs. The refinery index moves with the cyclic proxy at 0.34 monthly and 0.74 yearly.

- **0.34** monthly change correlation
- **0.74** 12-month change correlation
- **0.35** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.