The past five years have been difficult for supply chains. The COVID-19 pandemic has exacerbated the challenges in the raw material supply chain, but the problems have been going on before the pandemic. Before the pandemic, there were a variety of problems in certain raw materials. For example: • In 2017, titanium dioxide was hard to get for ink manufacturers as a result of consolidation among Chinese TiO2 manufacturers and a fire at a major plant in Finland. • In 2018, photoinitiators becam...