Yorkey Optical International (Cayman) Ltd. provided earnings guidance for the six months ended June 30, 2018. For the year, the group expects that the revenue will be approximately USD 34,070,000, representing a de-crease of approximately 26% as compared to USD 46,185,000 for the same period of 2017 and the net profit for the six months ended 30 June 2018 will range from USD 3,000,000 to USD 3,161,000, representing a decrease of approximately 0% to 5% as compared to USD 3,161,000 for the same period of 2017. The Group's revenue for the six months ended 30 June 2018 is expected to decrease by approximately 26% as compared to that for the same period of 2017, which in turn is expected to lead to the decrease in gross profit as the main production base of the Group is located in China and its functional currency is Renminbi, the Group recorded ex- change loss of USD 1,670,000 due to the appreciation of Renminbi against United States dollars in the first quarter of 2018. Nevertheless, as the exchange rate of Renminbi against United States dollars in the second quarter of 2018 experienced a turnaround from appreciation to depreciation, based on the preliminary assessment of the information currently available to the Group, it is expected that the exchange gain for the second quarter of 2018 will range from USD 1,696,000 to USD 1,896,000. Given the volatilities brought by the fluctuations in exchange rate, it is expected that the exchange gain for the six months ended 30 June 2018 will range from USD 26,000 to USD 226,000, as compared to exchange loss of USD 905,000 for the same period of 2017; and (3) as stated in the paragraph headed "Obligation related to Interest in an Associate" on page 9 of the 2017 annual report of the Company, inter alia, the fact that the Group ceased to share the results of Pioneer Yorkey do Brasil Ltda. on 23 May 2017 and ac- counted for as a disposal of the entire 49% equity interest in PYBL, resulting in a loss of accumulated currency realignment on disposal of approximately USD 4,209,000 during the period of 2017, was a one-off event and no such occurrence was recorded for the six months ended 30 June 2018.