Currently, there's a heated debate about the use of lead in copper alloys. In fact, lead might be prohibited completely in the future in this context.
At the moment, a "lead 6c exception" is being included in the ROHS directive 2011/65/EU, which allows the use of max. 4% lead in copper alloys.
Whatever will be the outcome of this debate, it is not relevant at all for our EKL S as this product is already lead-free and thus absolutely future-proof.