A rights issue is a form of secondary capital raising where a company offers its existing shareholders the right (but not the obligation) to buy newly issued shares at a price that is usually set at a discount to the prevailing market price.
The offer is made in proportion to existing holdings — for example, a "1-for-4 rights issue" means every shareholder can buy one new share for every four they already own. This proportionality is designed to allow shareholders to maintain their percentage ownership in the company without dilution, provided they exercise their rights.
Shareholders who do not wish to subscribe to the new shares can sell their rights in the market (if they are renounceable) during a defined trading window, allowing them to capture some of the value without committing new capital.
Rights issues are announced via the CSE and are subject to SEC approval. They are typically used to fund expansion, reduce debt, or shore up the balance sheet. Whether a rights issue is positive or negative news depends heavily on how the funds will be deployed and the company's track record of capital allocation.