When I saw this, first thing I thought was tariffs. India, as the article mentions, is a perfect big example but not even close to the only one. Not unique to Pakistan or India or elsewhere including the U.S. If there is substantial sales to be had in country, the local government wants some of that being returned in country (not necessarily all 100% above board).
Manufacturing requires a reliable power source, reliable transportation, reliable communications, sufficient workforce of varying skills, a base line enforcement of rule of law. These cannot be in doubt/on any level of shaky ground. While I don't know enough of Pakistan to say if all of these needs can be reliably met, first impression is it may not be at a high enough reliability.