Currently, there is a specific global raw material shortage affecting UV curing inks. This impacts supply of a UV photoinitiator commonly known as “TPO.” While supply of TPO comes from several different manufacturers, a key chemical feedstock used in the manufacture of TPO (and other similar photoinitiators) comes from one main upstream source in China. The manufacturing of this feedstock has been temporarily halted while inspections are undertaken due to an unrelated incident in the same industrial zone. This incident comes within the wider context of similar unplanned shut downs of UV raw material capacity in China and a tighter regulatory environment in Europe limiting alternative options.

This supply disruption means that the feedstock cannot be produced at present and supplies are now at critically low levels globally, which has impacted the availability and production of TPO itself. Please note that this is an industry-wide shortage affecting all UV ink manufacturers.

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