Show Chemical tax as an additional fee

Hi.

I need to display an additional chemical tax on the product page as well as in the cart and checkout.

The full price of the product is the sum of a customer price + chemical tax, but I need to show them as separate costs.

I’ve already implemented a custom PriceCalculator that’ll fetch the price from their erp, and in the response I also get the chemical tax. But how do I get this to the front end? The customer opted out from using price lists, so all prices are fetched directly, in real time, from their erp system.

The tax and price can differ from customer to customer, so it’s not an option to store it on the product.

It’s a headless Litium project.

Litium version: [8.22.2]