The iPhone X was commercially released on November 3, 2017. Almost 2 years ago. IMO it shouldn't take 2 years for revenue from the iPhone X to flow through the maze to LQMT. We are left to conclude that LQMT isn't getting revenue from the iPhone X. Either Yihao Metal isn't a CM for Apple or Yihao Metal isn't sharing the revenue with LQMT.
Injection molding for the metal mentioned here! (Grooving could mean “trench” or “trenching” via translation.)
“Kuo believes the grooving and injecting of the metal in next year's iPhone frame will reduce the negative impact of metal shielding on the high-frequency transmission efficiency of the internal antenna, while the use of sapphire or tempered glass on the groove will serve to protect the injection molded structure. “