1. Organizer

MELC is organized by PT Lentera Inovasi Global (Lenterago). By registering, you agree to these terms and the MELC Privacy Policy.

2. Participants

Participants are active students in grades 4–6, junior high (grades 7–9), or senior high (grades 10–12) with a valid NISN.

A student account is for one student only. One WhatsApp number can be used for one account only.

Participants under 18 register together with, and with the consent of, a parent or guardian.

3. Accounts

Information provided must be accurate. The participant’s name is printed on the certificate and can be corrected until the certificate is issued.

Account holders are responsible for keeping their password secret.

Parent and teacher/school accounts can register several students; each student gets their own competition account.

4. Fees and payment

Registration fees are those shown on the website at the time of payment. Payments are processed by Lenterago via QRIS, virtual account, or bank transfer.

A registration is confirmed once payment is verified.

Free invitation codes (the 10 + 2 offer) can be used once and are valid until registration closes.

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5. Running the competition

The competition runs online according to each round’s schedule as announced by the organizer. Students who start late still finish at the same end time.

Students must follow the proctoring rules: keep the exam page in full screen, join the assigned Zoom room with a second device, and receive no help from anyone else.

The system records every time a student leaves the exam page. Repeated violations may cause answers to be submitted automatically. Students with technical problems can contact the admin during the exam.

Proctoring recordings of students who advance may be reviewed. Students found cheating may be disqualified.

6. Results, prizes, and certificates

The organizer’s decisions on results are final. Results and worked solutions are published in the portal.

Prizes are awarded as listed on the website. Class vouchers apply to Lenterago programs under the voucher terms.

Every participant receives a QR-verified digital certificate that can be checked at melc.co.id.

7. Changes

The organizer may change schedules, technical rules, or these terms when needed. Changes are announced on the website and in the MELC WhatsApp group.

8. Contact

PT Lentera Inovasi Global, Sovereign Plaza Lantai 12 Jl. TB Simatupang N. 36, Cilandak Barat, Jakarta Selatan, DKI Jakarta 12430. Email: [contact email]. WhatsApp: 0851-1122-1170.