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Q&A with Dr Prapisala THEPSITHAR on the significance of trialling a prescribed B100 bio-blend comprising two types of biodiesels

Published on

11 June 2026

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An interview with Dr Prapisala THEPSITHAR on our latest trial with BHP!


This trial intentionally combines two types of biodiesel at prescribed amounts: one made from used cooking oil and one made from tallow, a waste animal fat.

But why does the exact blend ratio matter?

Biodiesels derived from different feedstocks can vary in cost, life cycle GHG emissions intensity and chemical properties.

That is why it is important to understand not only that a fuel is a bio-blend, but also how much of each biodiesel is in the final blend.

In this Q&A, Dr Prapisala Thepsithar explains:

  • how the blend ratio affects GHG emissions reporting
  • what it means for onboard operations
  • how we are verifying what is in the blend
  • why this trial matters for shipowners and operators
  • why trialling through an existing supply chain is important


Read the Q&A here:

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