Riverside, Calif., October 28, 2025
Dear Customer,
As you are aware, the People’s Republic of China (PRC) recently announced that it will impose export control restrictions as of November 8, 2025 on five (5) additional elements commonly referred to as rare earth metals, alloys and magnets, wafers, and tubes made from them.
The expanded list of rare earth elements is as follows: holmium, erbium, thulium, europium and ytterbium metal and the following materials:
- Various alloys and coating materials – examples below (not a complete list):
- Holmium-copper, magnesium-holmium, holmium-iron
- Erbium-aluminum, erbium-containing hydrogen storage materials, erbium-containing ceramic materials
- Thulium-containing crystal materials, thulium-containing luminescent materials
- Magnesium-europium, crystalline materials containing europium
- Ytterbium-containing optical fiber materials, ytterbium-containing thermal shielding coating materials
- Phosphor
- Alloys in multiple physical forms, including ingots, blocks, bars, wires, sheets, rods, plates, tubes, granules, and powders
- Wafers and tubes with five (5) rare earth materials
- Magnets and magnetic Particles with five (5) rare earth materials
- Oxides, compounds, mixtures, and powders
The PRC also restricted certain graphite anode material related items such as artificial graphite anode material, anode material composed of a mixture of artificial graphite and natural graphite and rechargeable lithium-ion batteries with a weight energy density of 300 Wh/kg or more and equipment for manufacturing rechargeable lithium-ion batteries and related materials for such manufacture.
Bourns surveyed its supply chain to ascertain if it was affected by the expanded export restrictions and is pleased to report that there is no supply risk to our supply chain.
If the situation changes with rare earth metals and/or magnets, we will provide an update to each of you on the status of your shipments through customer support.
We thank you for your continued trust in Bourns. We are committed to mitigating the impact of these events which are beyond our control in the most expeditious manner under the circumstances.
Bourns, Inc.
James Harrington
Senior Vice President Worldwide Sales