Mitra Prodin rolled out ELSA Business to 70 employees in Bali, Indonesia, and 61% of active learners moved up a CEFR level in 90 days.
The programme review covers about three months, from February 2026 to May 2026, the first quarter of a one-year programme. In that period, all licensed learners activated ELSA, and average EPS rose from 58.2 to 69.0.
PT Mitra Prodin is the world's largest private-label manufacturer of pre-rolled cones, based in Bali, Indonesia.
Mitra Prodin and ELSA Business at a glance
| Item | Detail |
|---|---|
| Customer | PT Mitra Prodin |
| Industry | Manufacturing |
| Location | Bali, Indonesia |
| Teams | Employees from various departments, including project management and operations, finance, administration, production, quality assurance and supply chain |
| Learners | 70 |
| Product | ELSA Business |
| How progress was measured | ELSA Proficiency Score (EPS), with CEFR levels mapped from EPS ranges |
| Review period | First 90 days of a one-year programme, February 2026 to May 2026 |
Why did Mitra Prodin's team in Indonesia need stronger spoken English?
Mitra Prodin wanted its employees to handle international business in English on their own, including supplier negotiations, safety briefings and international tenders.
The aim was to help employees shift from needing support to working independently in international business communication. The practical challenge was building consistent learning habits across departments, so employees knew what to practise each day and stayed motivated.
How did Mitra Prodin roll out ELSA Business across departments?
Mitra Prodin gave 70 employees from various departments ELSA Business licences, with personalised daily practice through ELSA's Today's Tasks.
Targeted roleplays let learners practise workplace scenarios. Learners also used daily Pronunciation Coach sessions, and Voice Modulation, which previews a learner's future English voice. Day 1 retention was 83%.
Progress was tracked with the ELSA Proficiency Score (EPS), which measures English proficiency based on speaking performance across pronunciation, intonation, fluency, grammar and vocabulary.
Did Mitra Prodin's employees actually use ELSA?
Yes. All licensed learners onboarded and practised on ELSA, which is a 100% activation rate.
- Daily practice: 26 minutes per learner on average, above ELSA's 15-minute daily benchmark.
- Day 1 retention: 83% of learners.
How was Mitra Prodin's English progress measured, and what changed?
Average EPS rose by 10.8 points, from 58.2 to 69.0, in the first 90 days, and 42 learners moved up at least one CEFR level.
That is 61% of active learners. The number of learners at B2 or above rose from 20 to 59, so 39 learners crossed into B2. The A2 group fell from 15 learners to none.
| Measure | Start | End | Change |
|---|---|---|---|
| Average EPS | 58.2 | 69.0 | +10.8 points |
Source: Mitra Prodin and ELSA programme review, 2026.
Which speaking skills improved most at Mitra Prodin?
Intonation improved most, rising 23 points to 76%. Pronunciation rose 13.9 points to 72%, and fluency rose 9.1 points to 66%.
| Skill | Start | End | Change |
|---|---|---|---|
| Intonation | 53% | 76% | +23.0 points |
| Pronunciation | 58.1% | 72% | +13.9 points |
| Fluency | 56.9% | 66% | +9.1 points |
Source: Mitra Prodin and ELSA programme review, 2026.
What does Mitra Prodin say about ELSA?
"This is a truly exciting new way to learn! The AI technology is great, but the ability to do custom roleplays based on my own specific needs is what makes the experience so engaging and useful."
Wilasita, Facility Management Service Supervisor, Mitra Prodin
Frequently asked questions
What English training did Mitra Prodin use in Indonesia?
Mitra Prodin used ELSA Business for 70 employees from various departments at its base in Bali, Indonesia. Learners followed personalised daily practice through Today's Tasks, with roleplays based on workplace scenarios and daily Pronunciation Coach sessions. Progress was tracked with the ELSA Proficiency Score.
How long does Mitra Prodin's programme review cover?
The review covers the first 90 days of a one-year programme, from February 2026 to May 2026. In that period, all licensed learners activated ELSA, and learners practised for an average of 26 minutes a day, above ELSA's 15-minute daily benchmark.
How many Mitra Prodin learners moved up a CEFR level?
42 learners moved up at least one CEFR level in the first 90 days, which is 61% of active learners. The number of learners at B2 or above rose from 20 to 59, and the A2 group fell from 15 learners to none.
What is the ELSA Proficiency Score?
The ELSA Proficiency Score (EPS) measures English proficiency based on speaking performance. It covers pronunciation, intonation, fluency, grammar and vocabulary. At Mitra Prodin, average EPS rose from 58.2 to 69.0 in the first 90 days, a gain of 10.8 points.
Which teams took part in Mitra Prodin's programme?
Employees from various departments took part, including project management and operations, finance, administration, production, quality assurance and supply chain. Mitra Prodin's goal was for these teams to handle supplier negotiations, safety briefings and international tenders in English on their own.
