Some of the estates have palm trees that are 30 years or older. Palm trees are considered old at 26 years. So MHC is planning to replant the trees in some of the estates. This can be volatile. During their young life, palms are also susceptible to attack by rhinoceros beetles.
Palms grown on peat soil are also susceptible to attack by termites.
MHC is susceptible to labour shortages or increases in labour costs. Competition from other palm oil producers and also producers of other types of edible vegetable oils such as soybean, sunflower see, rape seed oils as these oils are direct substitutes of palm oil. Datin Seri Ooi Ah Thin is the mother of Dato' Mah King Seng and Dato' Mah King Thian, as well as the grandmother of Mah Siew Hoe, Mah Siew Keong and Mah Siew Chuan. Mah Siew Hoe is the husband of Madam Hooi Yoke Lin and the father of Ms Mah Li-Jeen. Datin Seri Ooi Ah Thin, Malaysian, age 61, is the wife of the late founder, Dato' Seri Mah Pooi Soo.