# EDGAR Filing Document

**Accession Number:** 0002077929
**File Stem:** 0001185185-25-002081
**Filing Date:** 2025-12
**Character Count:** 30967
**Document Hash:** acc85ea0109d0f24af5a973bec68d698
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001185185-25-002081.hdr.sgml**: 20251217

**ACCESSION NUMBER**: 0001185185-25-002081

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13G

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20251217

**DATE AS OF CHANGE**: 20251217

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Blueport Acquisition Ltd
- **CENTRAL INDEX KEY:** 0002064177
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-95356
- **FILM NUMBER:** 251577704

**BUSINESS ADDRESS:**
- **STREET 1:** 366 MADISON AVENUE, 3RD FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017
- **BUSINESS PHONE:** 212-829-8937

**MAIL ADDRESS:**
- **STREET 1:** 366 MADISON AVENUE, 3RD FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Blueport Acquisition Corp
- **CENTRAL INDEX KEY:** 0002077929

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** NV
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G

**BUSINESS ADDRESS:**
- **STREET 1:** 366 MADISON AVENUE, 3RD FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017
- **BUSINESS PHONE:** 212-829-8937

**MAIL ADDRESS:**
- **STREET 1:** 366 MADISON AVENUE, 3RD FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017

## Exhibit 99.1

**Exhibit 1**

**JOINT FILING AGREEMENT**

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the ordinary shares, par value $0.0001 per share, of Blueport Acquisition Ltd, a Cayman Islands exempted company, and further agree that this Joint Filing Agreement shall be included as an Exhibit to such joint filings.

The undersigned further agree that each party hereto is responsible for the timely filing of such Statement on Schedule 13G and any amendments thereto, and for the accuracy and completeness of the information concerning such party contained therein; provided, however, that no party is responsible for the accuracy or completeness of the information concerning any other party, unless such party knows or has reason to believe that such information is inaccurate.

This Joint Filing Agreement may be signed in counterparts with the same effect as if the signature on each counterpart were upon the same instrument.

IN WITNESS WHEREOF, the undersigned have executed this agreement as of December 16, 2025.

---

| | |
|:---|:---|
| **Blueport Acquisition Corporation** | **Blueport Acquisition Corporation** |
| By: | /s/ William Rosenstadt |
| Name: | William Rosenstadt |
| Title: | Chief Executive Officer |

---

---

| |
|:---|
| /s/ William Rosenstadt |
| William Rosenstadt |
| /s/ Roy Jiang |
| Roy Jiang |

---

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13G

### Under the Securities Exchange Act of 1934

**Issuer:** Blueport Acquisition Ltd

**Title of Class of Securities:** Class A Ordinary Shares, par value $0.0001 per share

**CUSIP Number:** G1196A102

**Date of Event Which Requires Filing of this Statement:** 11/10/2025

**Check the appropriate box to designate the rule pursuant to which this Schedule is filed:**

- [ ] Rule 13d-1(b)

- [ ] Rule 13d-1(c)

- [x] Rule 13d-1(d)

---

| 1. | Names of Reporting Persons<br>Blueport Acquisition Corporation | Names of Reporting Persons<br>Blueport Acquisition Corporation |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>NV | Citizenship or Place of Organization<br>NV |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>1634750.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>1634750.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>1634750.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>1634750.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>22.14% | Percent of Class Represented by Amount in Row (9)<br>22.14% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** Blueport Acquisition Corporation (the "Sponsor"), is the beneficial owner of the 1,634,750 Ordinary Shares (defined below) reported in Items 5, 7 and 9 consisting of (a) 197,250 Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and (b) 1,437,500 Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and together with the Class A Ordinary Shares, the "Ordinary Shares"), which are convertible into Class A Ordinary Shares on a one-for-one basis upon the consummation of a business combination or earlier at the option of the holder, subject to adjustment as described in the Issuer's amended and restated memorandum and articles of association. The 197,250 Class A Ordinary Shares are included in units acquired pursuant to a Private Units Subscription Agreement, dated November 10, 2025, by and between the Sponsor and Blueport Acquisition Ltd (the "Issuer"). Each private unit consists of one Class A ordinary share, and one right to receive one-sixth (1/6th) of one Class A ordinary share upon the consummation of the Issuer's initial business combination. Excludes the 32,875 Class A Ordinary underlying the 197,250 rights. The rights convert automatically into Class A ordinary shares concurrently with or immediately following the consummation of the Issuer's initial business combination. If the business combination has not been consummated within the applicable time period specified in the Issuer's Amended and Restated Memorandum and Articles of Association, the rights shall expire and shall be worthless. The address for the Sponsor is 366 Madison Avenue, 3rd Floor New York, NY 10017.

---

| 1. | Names of Reporting Persons<br>Jiang Roy | Names of Reporting Persons<br>Jiang Roy |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>1634750.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>1634750.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>1634750.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>1634750.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>22.14% | Percent of Class Represented by Amount in Row (9)<br>22.14% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Blueport Acquisition Corporation (the "Sponsor"), is the beneficial owner of the 1,634,750 Ordinary Shares (defined below) reported in Items 5, 7 and 9 consisting of (a) 197,250 Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and (b) 1,437,500 Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and together with the Class A Ordinary Shares, the "Ordinary Shares"), which are convertible into Class A Ordinary Shares on a one-for-one basis upon the consummation of a business combination or earlier at the option of the holder, subject to adjustment as described in the Issuer's amended and restated memorandum and articles of association. The 197,250 Class A Ordinary Shares are included in units acquired pursuant to a Private Units Subscription Agreement, dated November 10, 2025, by and between the Sponsor and Blueport Acquisition Ltd (the "Issuer"). Each private unit consists of one Class A ordinary share, and one right to receive one-sixth (1/6th) of one Class A ordinary share upon the consummation of the Issuer's initial business combination. Excludes the 32,875 Class A Ordinary underlying the 197,250 rights. The rights convert automatically into Class A ordinary shares concurrently with or immediately following the consummation of the Issuer's initial business combination. If the business combination has not been consummated within the applicable time period specified in the Issuer's Amended and Restated Memorandum and Articles of Association, the rights shall expire and shall be worthless. The Sponsor is managed by its two principals, William Rosenstadt and Roy Jiang, and is legally and beneficially owned (i) 50% by William Rosenstadt and (ii) 50% by Roy Jiang. By virtue of their shared control of our sponsor, William Rosenstadt and Roy Jiang may be deemed to have beneficial ownership of the shares held directly by our sponsor. The address for the Sponsor is 366 Madison Avenue, 3rd Floor New York, NY 10017. Mr. Jiang disclaims any beneficial ownership of the shares held by the Sponsor, except to the extent of his pecuniary interest therein.

---

| 1. | Names of Reporting Persons<br>William Rosenstadt | Names of Reporting Persons<br>William Rosenstadt |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>1634750.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>1634750.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>1634750.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>1634750.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>22.14% | Percent of Class Represented by Amount in Row (9)<br>22.14% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Blueport Acquisition Corporation (the "Sponsor"), is the beneficial owner of the 1,634,750 Ordinary Shares (defined below) reported in Items 5, 7 and 9 consisting of (a) 197,250 Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and (b) 1,437,500 Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and together with the Class A Ordinary Shares, the "Ordinary Shares"), which are convertible into Class A Ordinary Shares on a one-for-one basis upon the consummation of a business combination or earlier at the option of the holder, subject to adjustment as described in the Issuer's amended and restated memorandum and articles of association. The 197,250 Class A Ordinary Shares are included in units acquired pursuant to a Private Units Subscription Agreement, dated November 10, 2025, by and between the Sponsor and Blueport Acquisition Ltd (the "Issuer"). Each private unit consists of one Class A ordinary share, and one right to receive one-sixth (1/6th) of one Class A ordinary share upon the consummation of the Issuer's initial business combination. Excludes the 32,875 Class A Ordinary underlying the 197,250 rights. The rights convert automatically into Class A ordinary shares concurrently with or immediately following the consummation of the Issuer's initial business combination. If the business combination has not been consummated within the applicable time period specified in the Issuer's Amended and Restated Memorandum and Articles of Association, the rights shall expire and shall be worthless. The Sponsor is managed by its two principals, William Rosenstadt and Roy Jiang, and is legally and beneficially owned (i) 50% by William Rosenstadt and (ii) 50% by Roy Jiang. By virtue of their shared control of our sponsor, William Rosenstadt and Roy Jiang may be deemed to have beneficial ownership of the shares held directly by our sponsor. The address for the Sponsor is 366 Madison Avenue, 3rd Floor New York, NY 10017. Mr. Rosenstadt disclaims any beneficial ownership of the shares held by the Sponsor, except to the extent of his pecuniary interest therein.

---

**Item 1(a). Name of Issuer:**
Blueport Acquisition Ltd

**Item 1(b). Address of Issuer's Principal Executive Offices:**
C/O BLUEPORT ACQUISITION LTD 366 MADISON AVENUE, 3RD FLOOR NEW YORK NY 10017

**Item 2(a). Name of Person Filing:**
(i) Blueport Acquisition Corporation (the "Sponsor"), (ii) William Rosenstadt, and (iii) Roy Jiang. The Sponsor, William Rosenstadt and Roy Jiang have entered into a Joint Filing Agreement, dated the date hereof, pursuant to which the Sponsor, William Rosenstadt and Roy Jiang have agreed to file this statement and any subsequent amendments hereto jointly in accordance with the provisions of Rule 13d-1(k)(1) under the Act. Any disclosures herein with respect to persons other than the Sponsor, William Rosenstadt and Roy Jiang are made on information and belief after making inquiry to the appropriate party. The filing of this statement should not be construed as an admission that any of the forgoing persons is, for the purposes of Section 13 of the Act, the beneficial owner of the Ordinary Shares reported herein.

**Item 2(b). Address of Principal Business Office:**
C/O BLUEPORT ACQUISITION LTD 366 MADISON AVENUE, 3RD FLOOR

**Item 2(c). Citizenship:**
(i) Blueport Acquisition Corporation- Nevada corporation (ii) William Rosenstadt - United States and (iii) Roy Jiang- United States

**Item 2(d). Title of Class of Securities:**
Class A Ordinary Shares, par value $0.0001 per share

**Item 2(e). CUSIP Number:**
G1196A102

**Item 3. If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:**

(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e) [ ] An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f) [ ] An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g) [ ] A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h) [ ] A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) [ ] A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), if filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:

(k) [ ] Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

**Item 4. Ownership:**

**(a) Amount beneficially owned:**

Blueport Acquisition Corporation (the "Sponsor"), is the beneficial owner of the 1,634,750 Ordinary Shares (defined below) reported in Items 5, 7 and 9 consisting of (a) 197,250 Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and (b) 1,437,500 Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and together with the Class A Ordinary Shares, the "Ordinary Shares"), which are convertible into Class A Ordinary Shares on a one-for-one basis upon the consummation of a business combination or earlier at the option of the holder, subject to adjustment as described in the Issuer's amended and restated memorandum and articles of association. The 197,250 Class A Ordinary Shares are included in units acquired pursuant to a Private Units Subscription Agreement, dated November 10, 2025, by and between the Sponsor and Blueport Acquisition Ltd (the "Issuer"). Each private unit consists of one Class A ordinary share, and one right to receive one-sixth (1/6th) of one Class A ordinary share upon the consummation of the Issuer's initial business combination. Excludes the 32,875 Class A Ordinary underlying the 197,250 rights. The rights convert automatically into Class A ordinary shares concurrently with or immediately following the consummation of the Issuer's initial business combination. If the business combination has not been consummated within the applicable time period specified in the Issuer's Amended and Restated Memorandum and Articles of Association, the rights shall expire and shall be worthless. The address for the Sponsor is 366 Madison Avenue, 3rd Floor New York, NY 10017.

**(b) Percent of class:**

22.14%  (based on 7,384,750 Ordinary Shares outstanding as reported in the Issuer's final prospectus dated November 10, 2025).

**(c) Number of shares as to which the person has:**

**(i) Sole power to vote or to direct the vote:**

Blueport Acquisition Corporation:  1,634,750
Explanation: Blueport Acquisition Corporation (the "Sponsor"), is the beneficial owner of the 1,634,750 Ordinary Shares (defined below) reported in Items 5, 7 and 9 consisting of (a) 197,250 Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and (b) 1,437,500 Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and together with the Class A Ordinary Shares, the "Ordinary Shares"), which are convertible into Class A Ordinary Shares on a one-for-one basis upon the consummation of a business combination or earlier at the option of the holder, subject to adjustment as described in the Issuer's amended and restated memorandum and articles of association. The 197,250 Class A Ordinary Shares are included in units acquired pursuant to a Private Units Subscription Agreement, dated November 10, 2025, by and between the Sponsor and Blueport Acquisition Ltd (the "Issuer"). Each private unit consists of one Class A ordinary share, and one right to receive one-sixth (1/6th) of one Class A ordinary share upon the consummation of the Issuer's initial business combination. Excludes the 32,875 Class A Ordinary underlying the 197,250 rights. The rights convert automatically into Class A ordinary shares concurrently with or immediately following the consummation of the Issuer's initial business combination. If the business combination has not been consummated within the applicable time period specified in the Issuer's Amended and Restated Memorandum and Articles of Association, the rights shall expire and shall be worthless. The address for the Sponsor is 366 Madison Avenue, 3rd Floor New York, NY 10017
William Rosenstadt: 0
Roy Jiang: 0

**(ii) Shared power to vote or to direct the vote:**

Blueport Acquisition Corporation:  0
William Rosenstadt: 1,634,750
Explanation: Blueport Acquisition Corporation (the "Sponsor"), is the beneficial owner of the 1,634,750 Ordinary Shares (defined below) reported in Items 5, 7 and 9 consisting of (a) 197,250 Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and (b) 1,437,500 Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and together with the Class A Ordinary Shares, the "Ordinary Shares"), which are convertible into Class A Ordinary Shares on a one-for-one basis upon the consummation of a business combination or earlier at the option of the holder, subject to adjustment as described in the Issuer's amended and restated memorandum and articles of association. The 197,250 Class A Ordinary Shares are included in units acquired pursuant to a Private Units Subscription Agreement, dated November 10, 2025, by and between the Sponsor and Blueport Acquisition Ltd (the "Issuer"). Each private unit consists of one Class A ordinary share, and one right to receive one-sixth (1/6th) of one Class A ordinary share upon the consummation of the Issuer's initial business combination. Excludes the 32,875 Class A Ordinary underlying the 197,250 rights. The rights convert automatically into Class A ordinary shares concurrently with or immediately following the consummation of the Issuer's initial business combination. If the business combination has not been consummated within the applicable time period specified in the Issuer's Amended and Restated Memorandum and Articles of Association, the rights shall expire and shall be worthless. The Sponsor is managed by its two principals, William Rosenstadt and Roy Jiang, and is legally and beneficially owned (i) 50% by William Rosenstadt and (ii) 50% by Roy Jiang. By virtue of their shared control of our sponsor, William Rosenstadt and Roy Jiang may be deemed to have beneficial ownership of the shares held directly by our sponsor. The address for the Sponsor is 366 Madison Avenue, 3rd Floor New York, NY 10017. Mr. Rosenstadt disclaims any beneficial ownership of the shares held by the Sponsor, except to the extent of his pecuniary interest therein.
Roy Jiang: 1,634,750
Explanation: Blueport Acquisition Corporation (the "Sponsor"), is the beneficial owner of the 1,634,750 Ordinary Shares (defined below) reported in Items 5, 7 and 9 consisting of (a) 197,250 Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and (b) 1,437,500 Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and together with the Class A Ordinary Shares, the "Ordinary Shares"), which are convertible into Class A Ordinary Shares on a one-for-one basis upon the consummation of a business combination or earlier at the option of the holder, subject to adjustment as described in the Issuer's amended and restated memorandum and articles of association. The 197,250 Class A Ordinary Shares are included in units acquired pursuant to a Private Units Subscription Agreement, dated November 10, 2025, by and between the Sponsor and Blueport Acquisition Ltd (the "Issuer"). Each private unit consists of one Class A ordinary share, and one right to receive one-sixth (1/6th) of one Class A ordinary share upon the consummation of the Issuer's initial business combination. Excludes the 32,875 Class A Ordinary underlying the 197,250 rights. The rights convert automatically into Class A ordinary shares concurrently with or immediately following the consummation of the Issuer's initial business combination. If the business combination has not been consummated within the applicable time period specified in the Issuer's Amended and Restated Memorandum and Articles of Association, the rights shall expire and shall be worthless. The Sponsor is managed by its two principals, William Rosenstadt and Roy Jiang, and is legally and beneficially owned (i) 50% by William Rosenstadt and (ii) 50% by Roy Jiang. By virtue of their shared control of our sponsor, William Rosenstadt and Roy Jiang may be deemed to have beneficial ownership of the shares held directly by our sponsor. The address for the Sponsor is 366 Madison Avenue, 3rd Floor New York, NY 10017. Mr. Jiang disclaims any beneficial ownership of the shares held by the Sponsor, except to the extent of his pecuniary interest therein.

**(iii) Sole power to dispose or to direct the disposition of:**

Blueport Acquisition Corporation:  1,634,750
William Rosenstadt: 0
Roy Jiang: 0

**(iv) Shared power to dispose or to direct the disposition of:**

Blueport Acquisition Corporation:  0
William Rosenstadt: 1,634,750
Explanation: Blueport Acquisition Corporation (the "Sponsor"), is the beneficial owner of the 1,634,750 Ordinary Shares (defined below) reported in Items 5, 7 and 9 consisting of (a) 197,250 Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and (b) 1,437,500 Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and together with the Class A Ordinary Shares, the "Ordinary Shares"), which are convertible into Class A Ordinary Shares on a one-for-one basis upon the consummation of a business combination or earlier at the option of the holder, subject to adjustment as described in the Issuer's amended and restated memorandum and articles of association. The 197,250 Class A Ordinary Shares are included in units acquired pursuant to a Private Units Subscription Agreement, dated November 10, 2025, by and between the Sponsor and Blueport Acquisition Ltd (the "Issuer"). Each private unit consists of one Class A ordinary share, and one right to receive one-sixth (1/6th) of one Class A ordinary share upon the consummation of the Issuer's initial business combination. Excludes the 32,875 Class A Ordinary underlying the 197,250 rights. The rights convert automatically into Class A ordinary shares concurrently with or immediately following the consummation of the Issuer's initial business combination. If the business combination has not been consummated within the applicable time period specified in the Issuer's Amended and Restated Memorandum and Articles of Association, the rights shall expire and shall be worthless. The Sponsor is managed by its two principals, William Rosenstadt and Roy Jiang, and is legally and beneficially owned (i) 50% by William Rosenstadt and (ii) 50% by Roy Jiang. By virtue of their shared control of our sponsor, William Rosenstadt and Roy Jiang may be deemed to have beneficial ownership of the shares held directly by our sponsor. The address for the Sponsor is 366 Madison Avenue, 3rd Floor New York, NY 10017. Mr. Rosenstadt disclaims any beneficial ownership of the shares held by the Sponsor, except to the extent of his pecuniary interest therein.
Roy Jiang: 1,634,750
Explanation: Blueport Acquisition Corporation (the "Sponsor"), is the beneficial owner of the 1,634,750 Ordinary Shares (defined below) reported in Items 5, 7 and 9 consisting of (a) 197,250 Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and (b) 1,437,500 Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and together with the Class A Ordinary Shares, the "Ordinary Shares"), which are convertible into Class A Ordinary Shares on a one-for-one basis upon the consummation of a business combination or earlier at the option of the holder, subject to adjustment as described in the Issuer's amended and restated memorandum and articles of association. The 197,250 Class A Ordinary Shares are included in units acquired pursuant to a Private Units Subscription Agreement, dated November 10, 2025, by and between the Sponsor and Blueport Acquisition Ltd (the "Issuer"). Each private unit consists of one Class A ordinary share, and one right to receive one-sixth (1/6th) of one Class A ordinary share upon the consummation of the Issuer's initial business combination. Excludes the 32,875 Class A Ordinary underlying the 197,250 rights. The rights convert automatically into Class A ordinary shares concurrently with or immediately following the consummation of the Issuer's initial business combination. If the business combination has not been consummated within the applicable time period specified in the Issuer's Amended and Restated Memorandum and Articles of Association, the rights shall expire and shall be worthless. The Sponsor is managed by its two principals, William Rosenstadt and Roy Jiang, and is legally and beneficially owned (i) 50% by William Rosenstadt and (ii) 50% by Roy Jiang. By virtue of their shared control of our sponsor, William Rosenstadt and Roy Jiang may be deemed to have beneficial ownership of the shares held directly by our sponsor. The address for the Sponsor is 366 Madison Avenue, 3rd Floor New York, NY 10017. Mr. Jiang disclaims any beneficial ownership of the shares held by the Sponsor, except to the extent of his pecuniary interest therein.

**Item 5. Ownership of Five Percent or Less of a Class.**

[x] If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.

**Item 6. Ownership of More than 5 Percent on Behalf of Another Person.**

Not Applicable

**Item 7. Identification and Classification of the Subsidiary**

Not Applicable

**Item 8. Identification and Classification of Members of the Group**

Not Applicable

**Item 9. Notice of Dissolution of Group**

Not Applicable

**Item 10. Certification:**

—

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Blueport Acquisition Corporation**

**Date:** 12/16/2025

**By:** /s/ William Rosenstadt

**Name & Title:** Chief Executive Officer

**Jiang Roy**

**Date:** 12/16/2025

**By:** /s/ Roy Jiang

**Name & Title:** Roy Jiang

**William Rosenstadt**

**Date:** 12/16/2025

**By:** /s/ William Rosenstadt

**Name & Title:** William Rosenstadt