Tungray Technologies CTO files initial Form 3

Tungray Technologies Inc officer Yao Lei, the company’s Chief Technology Officer, has filed an initial Form 3 statement of beneficial ownership.

Rhea-AI Filing Summary

Tungray Technologies Inc officer Yao Lei, the company’s Chief Technology Officer, has filed an initial Form 3 statement of beneficial ownership. This filing identifies Yao Lei as an executive officer subject to insider reporting rules but does not list any share transactions or derivative positions.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Tungray Technologies (TRSG) Form 3 filing by Yao Lei show?

The Form 3 shows that Yao Lei is Chief Technology Officer of Tungray Technologies Inc and now an insider subject to SEC reporting. The filing is an initial ownership statement and does not report any specific share transactions.

Did Tungray Technologies (TRSG) CTO Yao Lei buy or sell shares in this Form 3?

No transactions are reported for Yao Lei in this Form 3. The transaction summary shows zero buys, sells, exercises, gifts, or other dispositions, indicating this filing only establishes insider status, not trading activity.

What insider role is disclosed for Yao Lei at Tungray Technologies (TRSG)?

The filing identifies Yao Lei as an officer of Tungray Technologies Inc, serving as Chief Technology Officer. This role makes Yao Lei a reporting person who must disclose future trades in company securities on Forms 4 and 5.

Does the Tungray Technologies (TRSG) Form 3 include any derivative securities for Yao Lei?

The derivative summary in the Form 3 is empty for Yao Lei. That means the filing does not list any options, warrants, or other derivative securities currently reportable for this officer as of the filing date.

Why is the Tungray Technologies (TRSG) Form 3 for Yao Lei important to investors?

The Form 3 formally registers Yao Lei as an insider, enabling investors to track future trades. While this filing shows no transactions, later Forms 4 or 5 will disclose any purchases, sales, or option exercises by the Chief Technology Officer.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/19/2026 - 12:15 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Yao Lei

(Last) (First) (Middle)

C/O/ TUNGRAY TECHNOLOGIES INC

#02-01, 31 MANDAI ESTATE

(Street)

SINGAPORE SINGAPORE 729933

(City) (State) (Zip)

SINGAPORE

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Tungray Technologies Inc [ trsg ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Technology Officer

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Lei Yao	03/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)