Pari-passu ranking of underlying shares ensures equal rights for IDR holders, with restricted liens and disclosure duties.

The regulation mandates that underlying shares of IDRs rank pari-passu with existing shares of the same class and requires disclosure if different share classes exist. The listed entity must not exercise a lien on fully paid underlying shares and may only exercise a lien on partly paid underlying shares for moneys called or payable at a fixed time. Advance payments toward calls may carry interest but shall not confer dividend or profit participation rights, subject to applicable home country law.

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