<p>Apple Inc has asked suppliers to ensure that shipments from Taiwan to China comply with the latter's customs regulations to avoid them from being held for scrutiny, according to a Nikkei report on Friday.</p>.<p>Sino-US trade tensions have escalated following US House of Representatives Speaker Nancy Pelosi and a congressional delegation's visit to Taiwan.</p>.<p>The iPhone maker told suppliers that China had started enforcing a long-standing rule that Taiwanese-made parts and components must be labeled as made either in "Taiwan, China" or "Chinese Taipei", the report added, citing sources familiar with the matter.</p>.<p>Apple did not immediately respond to a Reuters request for comment.</p>.<p>Apple iPhone assembler Pegatron Corp said its mainland China plant is operating normally, in response to a media report that shipments to Pegatron's factory in China were being held for scrutiny by Chinese customs officials.</p>.<p>Taiwanese supply and assembly partners Foxconn and Pegatron are ramping up manufacturing efforts as Apple is set to launch its new iPhone in September.</p>
<p>Apple Inc has asked suppliers to ensure that shipments from Taiwan to China comply with the latter's customs regulations to avoid them from being held for scrutiny, according to a Nikkei report on Friday.</p>.<p>Sino-US trade tensions have escalated following US House of Representatives Speaker Nancy Pelosi and a congressional delegation's visit to Taiwan.</p>.<p>The iPhone maker told suppliers that China had started enforcing a long-standing rule that Taiwanese-made parts and components must be labeled as made either in "Taiwan, China" or "Chinese Taipei", the report added, citing sources familiar with the matter.</p>.<p>Apple did not immediately respond to a Reuters request for comment.</p>.<p>Apple iPhone assembler Pegatron Corp said its mainland China plant is operating normally, in response to a media report that shipments to Pegatron's factory in China were being held for scrutiny by Chinese customs officials.</p>.<p>Taiwanese supply and assembly partners Foxconn and Pegatron are ramping up manufacturing efforts as Apple is set to launch its new iPhone in September.</p>