The residence or business addresses of the Reporting Persons are: (i) KTL: Flat/RM 8105A 8/F, YF Life Tower, 33 Lockhart Road, Wanchai, Hong Kong. (ii) KGL: RM 3508, 35/F., Central Plaza, 18 Harbour Road, Wanchai, Hong Kong. (iii) KTC: 46 Xizongbu Hutong, Mingyang International Center, Block B, Dongcheng District, Beijing 100005, People's Republic of China. (iv) Mr. Yahui Zhou: 10/F, 46 Xizongbu hutong, Mingyang International Center, Block B, Dongcheng District, Beijing 100005, People's Republic of China.

The principal business of KTL and KGL is investment holding, while KTC is a global internet company. Mr. Yahui Zhou is the executive chairman of the Issuer.

During the last five years, none of the Reporting Persons, and, to the best of their knowledge, none of the persons listed on Schedules A through C, has been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).

During the last five years, none of the Reporting Persons and, to the best of their knowledge, none of the persons listed on Schedules A through C, was a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

KTL and KGL are organized under the laws of Hong Kong, while KTC is organized under the laws of the People's Republic of China. Mr. Yahui Zhou is a citizen of the People's Republic of China.

Item 3 of the Original Schedule 13D is not amended by this Amendment.

Item 4 of the Original Schedule 13D is hereby amended and supplemented by adding the following at the end thereof: "On February 26, 2026, the Issuer announced that its Board of Directors authorized a discretionary share repurchase program of up to $300 million over a two-year period. In connection with this program, on March 24, 2026, KTL, one of the Reporting Persons, entered into a Stock Purchase Agreement (the "Stock Purchase Agreement") with the Issuer. The purpose of entering into the Stock Purchase Agreement, and the dispositions of Ordinary Shares contemplated thereby, is to allow KTL to participate in the Issuer's share repurchase program on a pro rata basis. By selling Ordinary Shares to the Issuer in proportion to the ADSs repurchased by the Issuer from the public market, KTL intends to realize liquidity while the Reporting Persons generally maintain their approximate proportionate ownership interest in the Issuer. Pursuant to the Stock Purchase Agreement, the initial closing occured on March 26, 2026, at which time the Issuer repurchased 485,874 Ordinary Shares from KTL. Except as set forth in this Amendment and the Stock Purchase Agreement, the Reporting Persons have no present plans or proposals that relate to or would result in any of the actions specified in clauses (a) through (j) of Item 4 of Schedule 13D. The Reporting Persons intend to review their investment in the Issuer on a continuing basis and, depending upon various factors, including market conditions, the Issuer's business and financial position, and other investment opportunities, the Reporting Persons may take such actions with respect to their investment as they deem appropriate, including purchasing additional Ordinary Shares, disposing of Ordinary Shares, or engaging in discussions with management or the Board of Directors of the Issuer."

The information contained on the cover pages to this Amendment is incorporated herein by reference. As of the date hereof, the Reporting Persons beneficially own in the aggregate 61,081,569 Ordinary Shares, representing approximately 68.0% of the outstanding Ordinary Shares. All percentages calculated in this Amendment are based upon 89,880,513 Ordinary Shares outstanding, as reported in the Issuer's Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 27, 2026.

The information regarding the number of Ordinary Shares as to which each Reporting Person has the sole power to vote or direct the vote, the shared power to vote or direct the vote, the sole power to dispose or direct the disposition, and the shared power to dispose or direct the disposition, is set forth in Rows 7 through 11 of the respective cover pages of this Amendment for each Reporting Person, and is incorporated herein by reference.

On March 26, 2026, pursuant to the Stock Purchase Agreement described in Item 4 and Item 6 of this Amendment, KTL sold 485,874 Ordinary Shares to the Issuer in a private transaction for an aggregate consideration of approximately $7.4 million (representing a price of $15.21 per Ordinary Share). Except as disclosed in this Item 5(c) and the execution of the Stock Purchase Agreement on March 24, 2026, none of the Reporting Persons has effected any transactions in the Ordinary Shares of the Issuer during the past 60 days.

No person other than the Reporting Persons is known to have the right to receive, or the power to direct the receipt of dividends from, or proceeds from the sale of, the Ordinary Shares reported herein.

Not applicable.

Item 6 of the Original Schedule 13D is hereby amended and supplemented by adding the following at the end thereof: "On March 24, 2026, KTL and the Issuer entered into a Stock Purchase Agreement (the "Stock Purchase Agreement"). Pursuant to the Stock Purchase Agreement, KTL agreed to sell, and the Issuer agreed to purchase, an initial tranche of 485,874 Ordinary Shares for an aggregate consideration of approximately $7.4 million. The closing of this transaction occurred on March 26, 2026. The Stock Purchase Agreement also establishes a mechanism for KTL to continue selling Ordinary Shares to the Issuer in subsequent calendar quarters on a pro rata basis, corresponding to the Issuer's repurchases of ADSs from the public market under its Board-authorized $300 million share repurchase program, subject to the terms and conditions set forth in the agreement. The foregoing description of the Stock Purchase Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Stock Purchase Agreement, a copy of which is filed as Exhibit 99.5 to this Amendment and is incorporated herein by reference."

Item 7 of the Original Schedule 13D is hereby supplemented to include the following exhibits: Exhibit 99.1 - Joint Filing Agreement Exhibit 99.2 - Schedule A Exhibit 99.3 - Schedule B Exhibit 99.4 - Schedule C Exhibit 99.5 - Stock Purchase Agreement, dated March 24, 2026, by and between the Issuer and KTL