Airspace around Shenzhen, Hong Kong, and macau is a tight squeeze. Macau has very little aircpace of it's own and has no approach frequency. Traffic going into Macau either comes down from China therefore staying on Chinese freuquencies such as Zhuhai approach, or from the East passing through Hong kong control.
Departures are configured so that aircraft not departing into China immediately, can avoid fling into Chinese airspace. This is done by requiring a sharp turn after liftoff from Runway 34, as can be seen by the MK
in the photo. This way, if turns to the east and climbs into Hong Kong airspace. This is particularly useful in allowing Taiwanese airlines to be able to avoid flying into Mainland Chinese airspace, as the two countries do not have many dimplomatic contacts or relations.