Multi-fuel solutions are an increasingly common set-up in CHP (Combined Heat and Power) plants. Many use also different types of biofuels, such as wood or agricultural products. In Finland, the most prominent type of biofuel in CHP are forestry products, with agricultural biofuel playing only a marginal part. This work investigates the use of the papiNet standard, originally designed for the forestry supply chain, as a possible data exchange format for a multi-fuel supply chain where forestry products are the dominant type of fuel. In the work a model for the data exchange between different actors in the supply chain is described, and the application of papiNet in it is explored. As a result, the papiNet standard is found to be suitable for use with some provisions.