EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Arculus System Co., Ltd. (the “Company”) on Form 10-K/A for the year ended September 30, 2024 and September 30, 2023, as filed with the Securities and Exchange Commission on or about the date hereof (the “Report”), I, Jian-Meng Yang, the Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as enacted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

1.	The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2.	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: July 11, 2025	/s/ Jian-Meng Yang
	Jian-Meng Yang
	Chief Executive Officer
	(Principal Executive Officer)