CNBC’s Jim Cramer reported on tower companies Crown Castle, American Tower and SBA Communications, who have had minor exposure to China and continue riding the "decades-long tailwinds" in wireless technology. The impending rollout of fifth generation technology has been a catalyst for the group and has made tower real estate more valuable, Cramer noted. "The 5G buildout requires an enormous amount of investment, and that’s good news for the cell tower plays," he said.