Although CRI provides a useful indication of the current status in the market, it is not of high enough resolution to identify the key constraints of achieving widespread deployment. Therefore, a tool that complements TRL and CRI is required, as a single tool in isolation is not a sufficient assessment. Although not explicitly accounted for, it would be impossible to achieve a CRI above four if supply chain and manufacturing issues exist. In addition to concerns around policy and regulation, critical evaluation of the manufacturing and supply chain status is necessary to fulfil the required demand (estimated 2800 -4500 CCS plants by 2060). One such tool that evaluates this in more detail is the SCRI, which assists in the development of a supply chain to support large-scale deployment of a product/technology.