Employment Contract – HQ	Web3hub Global Company Limited 第三代互聯網基地有限公司

僱傭合約 Employment Contract

本僱傭合約由 第三代互聯網基地有限公司 (以下簡稱「僱主」) 與 李海鹏 *先生 /女士 (以下簡稱「僱員」) 於_ 2024/08/01 （年/月/日） 訂立，雙方同意遵守下列僱員僱傭條款及條件:

An agreement made between Web3hub Global Company Limited (hereinafter called “the Employer” / “Company”) and *Mr. /Ms. Li, Haipeng(Eddie)_(hereinafter called "the Employee”) at the day of 2024/08/01 Both Employer and Employee hereby agree to be bound by the following terms and conditions for Permanent staff:

	1.	受僱日期 Commencing Date 由 Effect from 2024/08/01

	2.	受僱職位 Position Marketing Executive

	3.	受僱部門 Department Marketing & External Liaison

	4.	工作地點 Place of Employment 在家工作 (香港境外) Work from home (outside Hong Kong)

	5.	工作時間 Hours of work 自定 Custom

	6.	工資 Salary

每月底薪 Basic Salary per month CNY25,000.00 (包括膳食時間薪金Pay Meal Breaks included)

另加以下津貼 Plus the following allowances :-

交通津貼每月 Travel

Allowance per month HK$Nil

假期薪金(每月) Rest

Days Pay: HK$Nil

	7.	支付工資 Payment

每月壹次，於每月5號以銀行自動轉帳或支票支付。如當天為公眾假期，則薪金將改於下一個工作天發出。

Once every month via bank auto pay or a bank cheque, on the fifth calendar day of the month. If the fifth day is a public holiday, the salary payment will be paid into the Employee’s account on the next work day.

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Employment Contract – HQ	Web3hub Global Company Limited 第三代互聯網基地有限公司

僱傭合約 Employment Contract

本僱傭合約由 第三代互聯網基地有限公司 (以下簡稱「僱主」) 與 金寶丹 *先生 /女士 (以下簡稱「僱員」) 於_ 2024/03/01 （年/月/日） 訂立，雙方同意遵守下列僱員僱傭條款及條件:

An agreement made between Web3hub Global Company Limited (hereinafter called “the Employer” / “Company”) and *Mr. /Ms. JIN, Baodan(Suki)_(hereinafter called “the Employee”) at the day of 2024/03/01 Both Employer and Employee hereby agree to be bound by the following terms and conditions for Permanent staff:

	1.	受僱日期 Commencing Date 由 Effect from 2024/03/01

	2.	受僱職位 Position Vice President ( Business Development and Public Relations )

	3.	受僱部門 Department Marketing & External Liaison

	4.	工作地點 Place of Employment 在家工作 (香港境外) Work from home (outside Hong Kong)

	5.	工作時間 Hours of work 自定 Custom

	6.	工資 Salary

每月底薪 Basic Salary per month CNY35,000.00 (包括膳食時間薪金Pay Meal Breaks included)

另加以下津貼 Plus the following allowances :-

交通津貼每月 Travel

Allowance per month HK$Nil

假期薪金(每月) Rest

Days Pay: HK$Nil

	7.	支付工資 Payment

每月壹次，於每月5號以銀行自動轉帳或支票支付。如當天為公眾假期，則薪金將改於下一個工作天發出。

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Web3hub Global Company Limited

20/F., No. 9 Des Voeux Road West, Sheung Wan, Hong Kong.

Tel.: (852) 2776 2311 Fax: (852) 2776 2257

PRIVATE & CONFIDENTIAL

Miss JIAO, JIE [HKID: [***]]	Date: April 01, 2026

Dear Miss Jiao,

Letter of Appointment

We are pleased to confirm your employment with Web3hub Global Company Limited (hereinafter called “the Employer”, on the terms and conditions under listed: -

Position	Chief Financial Officer
Monthly Salary	HK$30,000
Mode	Permanent
Working Hours	9:00 to 18:00 (5 days)
Commencement	April 01, 2026

Holidays:

The employee is entitled to all the * statutory holidays / public holidays;

Annual Leave:

In addition to the gazette general holidays, you will be eligible for 12 working days’ annual leave. Such leave shall be taken during the appointment period but shall not be included as part of the period of notice of termination of service. This leave must be taken during 12 months immediately following it accrual and leave entitlement, and it cannot be carried forward to next year. Any untaken leave shall lapse automatically and cannot be encashed.

Sick Leave (Apply to Permanent Staff Only):

Employees who apply for sick leave must produce a medical certificate issued by a registered medical practitioner.

Personal Leave:

Employees who apply for personal leave should submit their application at least two days in advance; salary will be deducted for personal leave.

Salary Review (Apply to Permanent Staff Only):

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Management Service Agreement

THIS AGREEMENT is made the 1st April 2026 between

(1)	Goldford Informatics Limited whose registered office is situate at Unit B, 1/F., Po Sing Mansion, 157 Kowloon City Road, Kowloon, Hong Kong. (“Goldford”) and

(2)	Web3hub Global Company Limited whose registered office is situate at Unit B, 1/F., Po Sing Mansion, 157 Kowloon City Road, Kowloon, Hong Kong. (“Web3hub”)

WHEREBY Goldford shall provide management service (“Management Service”) to Web3hub Pursuant to the following terms and conditions:

1.	Scope

Management Service includes the provision of office space, utilities and office overheads.

2.	Term

One year commencing from 1st April 2026.

3.	Management service fee

In consideration of the provision of Management Service by Goldford, Web3hub shall pay a fixed management service fee to Goldford at an amount of Hong Kong dollars Two Thousand Five Hundred and Ninety (HK$2,590) per month, payable in arrear at the end of each calendar month. Basis of calculation of the management service fee is detailed in Schedule 1 as attached.

4.	Termination

Either party may terminate this Agreement by giving one month written notice to the other party.

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Date of Agreement: 1 April 2023

Between:

	1.	Web3hub Global Company Limited (hereinafter referred to as “Web3hub” or “the Company”)

	2.	吳傑莊 (Johnny Ng) (hereinafter referred to as “Johnny Ng”) (Major shareholder of the Company)

	3.	黃俊瑯 (Caspar Wong) (hereinafter referred to as “Caspar Wong”) (Chief Executive Officer / CEO of the Company)

	4.	林芷瑋 (Joey Lam) (hereinafter referred to as “Joey Lam”) (Director of the Company)

	5.	金寶丹 (Suki Jin) (hereinafter referred to as “Suki Jin”) (Chief Operating Officer / COO of the Company)

1: Purpose of the Agreement

This Agreement aims to regulate the cooperation between Web3hub, its major shareholder Johnny Ng, and the other signatories (including the Company’s management), particularly with respect to the rights and obligations concerning the receipt, payment, and conversion of cryptocurrency.

This Agreement expressly stipulates that all cryptocurrency wallets listed below are owned and controlled by Web3hub, and the signatories are hereby delegated to manage and operate them in accordance with the provisions of this Agreement.

2: Receiving, Payment, and Investment Addresses and Management Authority

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Contract Date: April 1, 2025

Between:

	1.	Web3hub Global Company Limited (hereinafter referred to as “Web3hub” or “the Company”)

	2.	吳傑莊 (Johnny Ng) (hereinafter referred to as “Johnny Ng”)

1: Purpose of the Agreement

This Agreement is entered into for the purpose of regulating the appointment by Web3hub of Johnny Ng to operate the main collection and fund transfer wallet for cryptocurrency investment, and to clearly define the rights and obligations of both parties during the investment operation process.

2: Investment and Operation Authority

	1.	Main collection and fund transfer wallet (operated by Johnny Ng in accordance with instructions from Web3hub):

	o	ETH wallet address: [***]

	o	Ownership and control: All wallets are wholly owned and controlled by Web3hub.

	o	Scope of operation authority: Johnny Ng must strictly follow the written investment instructions issued by Web3hub. Johnny Ng has no authority to independently decide on investment targets, timing, or amounts. The operation authority of Johnny Ng is limited solely to executing the instructions of Web3hub and does not confer upon him any ownership, control, or other rights or interests in the wallet assets.

3: Investment Operation Procedure

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Contract Date: 1 April 2023

Between:

	1.	Web3hub Global Company Limited (hereinafter referred to as “Web3hub / the Company”)

	2.	G-Rocket Holdings Limited (hereinafter referred to as “G-Rocket”)

	3.	吳傑莊 (Johnny Ng) (hereinafter referred to as “Johnny Ng”)

Representations and Disclosures

The signing parties hereby confirm and represent:

	1.	G-Rocket directly holds 80% of the shares of Web3hub and is the controlling shareholder of Web3hub.

	2.	Johnny Ng is the ultimate beneficial owner of Web3hub as of the contract date.

	3.	All parties have fully understood and are aware of the above shareholding and control relationships.

	4.	The transactions under this agreement constitute connected/related-party transactions. All parties confirm that the terms of these transactions are fair and reasonable and comply with all applicable laws, regulations and regulatory requirements.

1: Purpose of the Agreement

This agreement aims to regulate the fund transfer, investment operations, and fiat currency conversion processes involving the G-Rocket OSL investment account, Web3hub, and Johnny Ng’s investment activities, in order to improve Web3hub’s cryptocurrency investment management system.

2: Fund Control and Transfer Authority

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[•], 2026

Research Alliance Corporation III

600 Fifth Avenue, 23rd Floor

New York, New York 10020

	Re:	Initial Public Offering

Ladies and Gentlemen:

This letter (this “Letter Agreement”) is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered into by and between Research Alliance Corporation III, a Cayman Islands exempted company (the “Company”) and Leerink Partners LLC, as the sole underwriter named therein (the “Underwriter”), relating to an underwritten initial public offering (the “Public Offering”) of up to 7,500,000 of the Company’s Class A ordinary shares, par value $0.0001 per share ( “Ordinary Shares”). The Ordinary Shares will be sold in the Public Offering pursuant to a registration statement on Form S-1 and a prospectus (the “Prospectus”) filed by the Company with the U.S. Securities and Exchange Commission (the “Commission”). Certain capitalized terms used herein are defined in paragraph 1 hereof.

In order to induce the Company and the Underwriter to enter into the Underwriting Agreement and to proceed with the Public Offering and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Research Alliance Holdings III LLC (the “Sponsor”) and each of the undersigned (each, an “Insider” and, collectively, the “Insiders”) hereby agree with the Company as follows:

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RESEARCH ALLIANCE CORPORATION III

600 Fifth Avenue, 23rd Floor

New York, New York 10020

[•], 2026

Research Alliance Holdings III LLC

c/o RA Capital

200 Berkeley Street, 18th Floor

Boston, MA 02116

Ladies and Gentlemen:

(a) This letter agreement (this “Agreement”) will confirm our agreement that, to the fullest extent permitted by applicable law, the Company agrees to defend, indemnify, hold harmless and exonerate (including the advancement of expenses to the fullest extent permitted by applicable law) the Sponsor, its directors, officers, employees, principals, managers, partners, members, shareholders, equityholders, control persons, affiliates, agents, advisors, consultants and representatives, including for the avoidance of doubt RA Capital Management, L.P. (“RA Capital Management”), (the “Indemnitees”), from any claims, losses, liabilities, obligations, causes of action, proceedings (whether pending or threatened), investigations, damages, awards, settlements, judgments, decrees, fees, costs, penalties, amounts paid in settlement or expenses (including interest, assessments and other charges in connection therewith and reasonable fees and disbursements of attorneys and other professional advisors and costs of suit) (A) arising out of or relating to any pending or threatened claim, action, suit, proceeding or investigation against any of them or in which any of them may be a participant or may otherwise be involved (including as a

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FORM OF INDEMNITY AGREEMENT

THIS INDEMNITY AGREEMENT (this “Agreement”) is made as of [•], 2026, by and between Research Alliance Corporation III, a Cayman Islands exempted company (the “Company”), and __________ (“Indemnitee”).

WHEREAS, highly competent persons have become more reluctant to serve publicly-held corporations as directors, officers or in other capacities unless they are provided with adequate protection through insurance or adequate indemnification against inordinate risks of claims and actions against them arising out of their service to and activities on behalf of such corporations;

WHEREAS, the Board of Directors of the Company (the “Board”) has determined that, in order to attract and retain qualified individuals, the Company will attempt to maintain on an ongoing basis, at its sole expense, liability insurance to protect persons serving the Company and its subsidiaries from certain liabilities. The amended and restated memorandum and articles of association of the Company (the “Articles”) provide for the indemnification of the officers and directors of the Company. Indemnitee may also be entitled to indemnification pursuant to applicable Cayman Islands law. The Articles provide that the indemnification provisions set forth therein are not exclusive, and thereby contemplate that contracts may be entered into between the Company and members of the Board, officers and other persons with respect to indemnification, hold harmless, exoneration, advancement and reimbursement rights;

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PRIVATE PLACEMENT SHARES PURCHASE AGREEMENT

THIS PRIVATE PLACEMENT SHARES PURCHASE AGREEMENT (as it may from time to time be amended and including all exhibits referenced herein, this “Agreement”), dated as of [•], 2026, is entered into by and between Research Alliance Corporation III, a Cayman Islands exempted company (the “Company”), and Research Alliance Holdings III LLC, a Cayman Islands limited liability company (the “Purchaser”).

WHEREAS, the Company intends to consummate an initial public offering (the “Public Offering”) of the Company’s Class A ordinary shares, par value $0.0001 per share (each, a “Share”), as set forth in the Company’s Registration Statement on Form S-1, filed with the U.S. Securities and Exchange Commission (the “SEC”), File Number 333-294549 under the Securities Act of 1933, as amended (the “Securities Act”).

WHEREAS, the Purchaser has agreed to purchase an aggregate of 275,000 Shares (the “Private Placement Shares”).

NOW THEREFORE, in consideration of the mutual promises contained in this Agreement and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties to this Agreement hereby, intending legally to be bound, agree as follows:

AGREEMENT

Section****1. Authorization, Purchase and Sale; Terms of the Private Placement Shares.

A. Authorization of the Private Placement Shares. The Company has duly authorized the issuance and sale of the Private Placement Shares to the Purchaser.

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REGISTRATION AND SHAREHOLDER RIGHTS AGREEMENT

THIS REGISTRATION AND SHAREHOLDER RIGHTS AGREEMENT (this “Agreement”), dated as of [•], 2026, is made and entered into by and among Research Alliance Corporation III, a Cayman Islands exempted company (the “Company”), Research Alliance Holdings III LLC, a Cayman Islands limited liability company (the “Sponsor”), and the undersigned parties listed under Holder on the signature page hereto (each such party, including the Sponsor and any person or entity who hereafter becomes a party to this Agreement pursuant to Section 6.2 of this Agreement, a “Holder” and collectively, the “Holders”).

RECITALS

WHEREAS, the Sponsor currently owns 1,245,269 shares of the Company’s Class B ordinary shares, par value $0.0001 per share (the “ClassB Ordinary Shares”), and the other Holders currently own an aggregate of 78,260 Class B Ordinary Shares, which were received from the Sponsor;

WHEREAS, the Class B Ordinary Shares are convertible into the Company’s Class A ordinary shares, par value $0.0001 per share (**“**Ordinary Shares”), at the time of the initial Business Combination or earlier at the option of the holder on a one-for-one basis, subject to adjustment, on the terms and conditions provided in the Company’s amended and restated memorandum and articles of association, as may be amended from time to time;

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