SAMCHEM - Eleventh hour inclusion of resolution of AGM

SAMCHEM scheduled its AGM on 18 May 2018. On 14 May 2018, the company included an additional agenda for tabling at the AGM. Is this legitimate, considering:

1. Insufficient notice period. The additional agenda was added with a notice period of less than 4 days. 

2. No revised proxy form issued. How do those shareholders who are unable to attend the AGM vote without a revised proxy form? Even if a revised proxy form was issued yesterday, it would be too rush to get the proxy form delivered  to the company 48 hours before the AGM. Furthermore, not every shareholder checks company announcement daily.

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