Context: How Bolsa de Valores de Asuncion works, and what it makes issuers disclose · Paraguay on the LatAm Power Map
Tecsul paves and ports Paraguay’s growth — roads, quays, cell towers, rubbish collection — all owned and run by one civil engineer who founded the company in 2005 with a single idea: win public tenders with your own heavy machines.
| Full name | Tecnología del Sur S.A.E. (TECSUL S.A.E.) |
| Ticker / exchange | TSU — Bolsa de Valores de Asunción (BVA) / BVPASA (debt securities only; no publicly traded equity) |
| Headquarters | Asunción, Paraguay |
| Sector | Infrastructure construction & urban services |
| Employees | Not disclosed in available sources |
| Market value (market cap) | Not applicable — listed bonds only, no equity shares traded |
| Yearly sales (revenue) | Gs. 156,952 million (~$25.9 million) — year ended Dec 31, 2024 |
| Net profit | Gs. 8,283 million (~$1.37 million) — year ended Dec 31, 2024 |
| Net margin | 5.3% (our calculation: 8,283 / 156,952) |
| Return on equity (ROE) | 12.28% (source: Solventa & Riskmetrica rating report, Dec 2024) |
| Total assets | Gs. 243,558 million (~$40.2 million) |
| Net equity | Gs. 75,750 million (~$12.5 million) |
| Price-to-earnings ratio | Not applicable — no traded equity |
| Dividend yield | Not applicable — no traded equity |
| Bond credit rating | pyBBB-, trend Fuerte (+) — Solventa & Riskmetrica, Dec 2024 |
| Website | www.tecsul.com.py |
What it is
Tecsul is a construction company established in 2005 that offers large-scale infrastructure services, machinery rental, stone crushing, and the production of asphalt and concrete mixes. Its work spans roads, ports, industrial sites, logistics centres and cell towers, alongside urban services such as rubbish collection and street cleaning.
On the private side it has built for names including Cargill, Louis Dreyfus, Cervepar, Vale and Caiasa, among others. The company raises money through the Paraguayan bond market — it does not sell shares to the public.
Who owns it
Tecsul began operations in 2005 and from 2018 operates as a Sociedad Anónima Emisora; it is a family business whose owner is civil engineer Joaquín Fernando Solano López, who serves as president and legal representative. He holds 90% of the share capital, with the remaining 10% in other hands.
No stock floats on any exchange; Tecsul taps capital markets purely through bonds, making its ownership structure unusually concentrated even by Paraguayan standards.
Who runs it
Joaquín Fernández Solano López is the president of Tecsul. He is a civil engineer who graduated from the Universidad Nacional de Asunción and holds a master’s in business management from IAE Business School, Universidad Austral, Argentina.
CFO and board chair names are not disclosed in available sources; the rating report confirms the Directorio (board) holds authority over bond issuances, and that at end-2024 the company hired management consultancy London to formalise operational procedures and performance tracking across its construction, procurement and machinery departments.
The money, in plain words
Total sales fell just 0.82%, from Gs. 158,251 million in 2023 to Gs.
156,952 million (~$25.9 million) in 2024 — public-sector billings dropped 25% but private-sector billings rose sharply to compensate. That diversification is the most important story in the 2024 numbers.
The company kept Gs. 8,283 million (~$1.37 million) as net profit — a net margin of 5.3% (our calculation), thin but normal for a heavy-construction contractor whose cost base is dominated by machinery, fuel and labour.
The bonds carry a credit rating of BBB-py with a stable-to-improving trend from Solventa & Riskmetrica. For every guaraní of owners’ equity, Tecsul earns back about 12 cents a year — a return on equity of 12.28%, respectable for the sector.
Debt is 2.22 times equity, and the company can cover its near-term bills 1.54 times over (current ratio: 1.54x), giving reasonable but not ample headroom.
What it is doing now
In August 2025, Tecsul placed Series 3 and 4 of its G2 global bond programme on the Asunción exchange. The proceeds go entirely to restructure existing debt, managed through CADIEM Casa de Bolsa.
The two new series follow a December 2024 placement of Gs. 10,000 million at 4- and 5-year maturities paying 13.00% and 13.15% annually.
The pattern is clear: Tecsul is rolling shorter obligations into longer ones at fixed rates, buying time for its private-sector pipeline to mature while waiting for the State to clear overdue payments.
What to watch
- State receivables. Public-sector billings fell 25% in 2024 due to budget delays; overdue receivables grew 69% to Gs. 41,841 million (~$6.9 million). If the government speeds up payments, cash flow and margins improve quickly.
- Private-sector mix. Private revenue rose 52% in a single year. Whether that growth holds — or was a one-off project concentration — will shape 2025 results.
- Refinancing risk. The company shows an important dependence on operational cash flows to meet its obligations, especially in 2025 and 2026. Bond markets staying open at reasonable rates is not guaranteed.
- Single-owner concentration. Ninety percent ownership in one person is a governance flag: succession, health or a legal dispute could move the company fast in any direction.
Sources
- Bolsa de Valores de Asunción — TECSUL issuer page
- Solventa & Riskmetrica — Informe de Calificación TECSUL PEG G1 & USD1, corte Diciembre 2024 (primary financial source)
- Riskmetrica — Informe de Calificación TECSUL, Jun 2021 (founding year, ownership structure)
- Revista PLUS — Tecsul bond placement, August 2025
- Revista PLUS — Tecsul bond placement, December 2024
- Tecsul corporate website
- Market data: EODHD.
This is news, not investment advice.
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